Patent US1749723A successfully refreshed from Google Patents.
US2531313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oscillator and oscillator-controlled relay system
Assignee: Honeywell Inc
•
Filing: 1944-06-22
•
Granted: 1950-11-21
•
Expires: 1964-06-22
Abstract
No abstract record available.
Inventors
- 👤 Jr William H Wannamaker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:27
CPC Classifications
G; G05; G05B; G05B11/00; G05B11/01; G05B11/012; G05B11/013; G05B1/00; G05B1/01; G05B1/04; G05B1/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2261815A
Cited
US1120708A
Cited
US880136A
Cited
US986277A
Cited
US1571405A
Cited
US1508237A
Cited
US1629001A
Cited
US1751485A
Cited
US1653736A
Cited
US1838084A
Cited
US1944988A
Cited
US1973303A
Cited
US2154260A
Cited
US2076368A
Cited
US2154287A
Cited
US2228163A
Cited
US2169977A
Cited
US2362021A
Cited
US2153986A
Cited
US2234184A
Cited
US2234895A
Cited
US2292798A
Cited
US2304207A
Cited
US2252941A
Cited
US2339750A
Cited
US2261153A
Cited
US2411247A
Cited
US2325965A
Cited
US2343453A
Cited
US2368785A
Cited
US2456463A
Cited
US2441568A
Cited
US2403744A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-20 | 1954-05-22 | 1954-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-20 | 1958-05-22 | 1958-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-20 | 1962-05-22 | 1962-11-21 | $7700.00 | Window Closed / Lapsed |