US2876629A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control for temperature changing device
Assignee: Alco Valve Co
•
Filing: 1954-07-30
•
Granted: 1959-03-10
•
Expires: 1974-07-30
Abstract
No abstract record available.
Inventors
- 👤 John E Dube
- 👤 Ralph B Tilney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:34
CPC Classifications
F; F25; F25B; F25B41/00; F25B41/30; F25B41/39; F25B2341/00; F25B2341/06; F25B2341/068; F25B2341/0681
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2731805A
Cited
US1782651A
Cited
US2181851A
Cited
US2296822A
Cited
US2252300A
Cited
US2498864A
Cited
US2718763A
Cited
US2745257A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-09 | 1962-09-08 | 1963-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-09 | 1966-09-08 | 1967-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-09 | 1970-09-08 | 1971-03-10 | $7700.00 | Window Closed / Lapsed |