US3045980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating and cooling apparatus
Assignee: Individual
•
Filing: 1959-01-28
•
Granted: 1962-07-24
•
Expires: 1979-01-28
Abstract
No abstract record available.
Inventors
- 👤 Isham Timothy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:57
CPC Classifications
F; F25; F25B; F25B17/00; Y; Y10; Y10S; Y10S165/00; Y10S165/132; Y10S165/133; Y10S165/134
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2002309A
Cited
US2003496A
Cited
US2068550A
Cited
US2367451A
Cited
US2907185A
Cited
US2902266A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-23 | 1966-01-22 | 1966-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-23 | 1970-01-22 | 1970-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-23 | 1974-01-22 | 1974-07-24 | $7700.00 | Window Closed / Lapsed |