US2959031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-contained air conditioning units
Assignee: Carrier Corp
•
Filing: 1955-12-16
•
Granted: 1960-11-08
•
Expires: 1975-12-16
Abstract
No abstract record available.
Inventors
- 👤 Harold H Hopkinson
- 👤 Maurice D Irwin
- 👤 Vernon R Kessler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:11
CPC Classifications
F; F24; F24F; F24F1/00; F24F1/02; F24F1/032; F24F1/0323; F24F1/0325; F24F1/0328; F24F1/035; F24F1/0358; F24F13/00; F24F13/22
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-08 | 1964-05-09 | 1964-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-08 | 1968-05-09 | 1968-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-08 | 1972-05-09 | 1972-11-08 | $7700.00 | Window Closed / Lapsed |