This section is from the book "The Law Of Contracts", by Samuel Williston. Also available from Amazon: Treatise on the Law of Contracts.
Classification of illegal agreements.................................... 1628
Variation of public policy........................................... 1629
Effect of illegal agreements.......................................... 1630
When illegality must be pleaded.....................................1630a
Illustrations of recovery by innocent plaintiffs......................... 1631
Illustrations of recovery where plaintiff not innocent.................... 1632
Contracts in restraint of trade....................................... 1633
Early law......................................................... 1634
Reasons for holding restraint invalid................................. 1635
Reasonableness of restraint.......................................... 1636
Statement by Taft, J., of permissible restraints........................ 1637
Partial restraints are valid; limit of time.............................. 1638
Limits of space.................................................... 1639
Contract implied on sale of good will................................. 1640
Sale of business with restrictive covenant is valid...................... 1641
Sale or lease of property with restrictive covenant..................... 1642
Promises ancillary to contracts of employment......................... 1643
Partners may make restrictive promises............................... 1644
Agreements for exclusive dealing..................................... 1645
Contracts not to divulge trade secrets are valid......................... 1646
Patented and copyrighted articles.................................... 1647
Agreement among competitors to limit competition or maintain prices.... 1648
Limitations on resale prices.......................................... 1649
Recovery of agreed payment for performing restrictive promise.......... 1650
Public service corporations.......................................... 1651
Agreements unduly restricting personal liberty are invalid............... 1652
Any contract may be rendered invalid if tending to produce monopoly... . 1653
Trade union agreements: English law.................................. 1654
Trade union agreements: American law................................ 1655
Effect of trade union being in restraint of trade........................ 1656
Anti-Trust Acts: Sherman Act....................................... 1657
Construction of the Sherman Act..................................... 1658
Divisibility of promises imposing excessive restraint.................... 1659
Partial enforcement of promise indivisible in terms..................... 1660
Collateral effects of illegal combinations.............................. 1661
Trust laws in foreign countries...................................... 1662
Contracts not to bid at auction....................................... 1663
Puffing............................................................ 1664
 
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