US3055642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination heating and cooling shelf
Assignee: Individual
•
Filing: 1958-07-11
•
Granted: 1962-09-25
•
Expires: 1978-07-11
Abstract
No abstract record available.
Inventors
- 👤 Cox George Robert
- 👤 James C Duffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:34
CPC Classifications
F; F25; F25D; F25D25/00; F25D25/02; F25D25/028; Y; Y10; Y10S; Y10S165/00; Y10S165/355
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US952723A
Cited
US1700498A
Cited
US1710818A
Cited
US2436390A
Cited
US2638754A
Cited
US2796239A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-24 | 1966-03-26 | 1966-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-24 | 1970-03-26 | 1970-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-24 | 1974-03-26 | 1974-09-25 | $7700.00 | Window Closed / Lapsed |