US2902834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air conditioning apparatus
Assignee: Carrier Corp
•
Filing: 1957-07-01
•
Granted: 1959-09-08
•
Expires: 1977-07-01
Abstract
No abstract record available.
Inventors
- 👤 Jr Cyrus M Bosworth
- 👤 Raymond T Divers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:05
CPC Classifications
F; F24; F24F; F24F8/00; F24F8/10; F24F1/00; F24F1/02; F24F1/0328; F24F1/03; F24F1/031; F24F1/032; F24F1/0323; F24F1/035; F24F1/0355; F24F8/108
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1519739A
Cited
US2222828A
Cited
US2134544A
Cited
US2661808A
Cited
US2672024A
Cited
US2804758A
Cited
US2782612A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-07 | 1963-03-09 | 1963-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-07 | 1967-03-09 | 1967-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-07 | 1971-03-09 | 1971-09-08 | $7700.00 | Window Closed / Lapsed |