US2960021A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air distributor
Assignee: Individual
•
Filing: 1957-07-08
•
Granted: 1960-11-15
•
Expires: 1977-07-08
Abstract
No abstract record available.
Inventors
- 👤 Louis C Cotts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:08
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/02; F24F13/06; F24F13/072
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1366165A
Cited
US1517434A
Cited
US1719659A
Cited
US2187762A
Cited
US2285346A
Cited
US2567789A
Cited
US2662747A
Cited
US2742845A
Cited
US2771833A
Cited
US2868103A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-15 | 1964-05-16 | 1964-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-15 | 1968-05-16 | 1968-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-15 | 1972-05-16 | 1972-11-15 | $7700.00 | Window Closed / Lapsed |