Patent US1623869A successfully refreshed from Google Patents.
Patent US2676224A successfully refreshed from Google Patents.
US2676224A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature sensitive device
Assignee: A C PALMER CONSTRUCTION Co
•
Filing: 1948-10-04
•
Granted: 1954-04-20
•
Expires: 1968-10-04
Abstract
No abstract record available.
Inventors
- 👤 Verl J Stephenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:22
CPC Classifications
H; H01; H01H; H01H37/00; H01H37/02; H01H37/32; H01H37/46; H01H37/48; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17008; Y10T74/00; Y10T74/18; Y10T74/18888
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US392617A
Cited
US1330892A
Cited
US1690049A
Cited
US1902451A
Cited
US2089081A
Cited
US2270738A
Cited
US2221907A
Cited
US2354834A
Cited
US2454647A
Cited
US2423693A
Cited
US2493323A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-19 | 1957-10-19 | 1958-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-19 | 1961-10-19 | 1962-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-19 | 1965-10-19 | 1966-04-20 | $7700.00 | Window Closed / Lapsed |