US2672818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic delay starting and lock-out switch mechanism
Assignee: Individual
•
Filing: 1950-03-16
•
Granted: 1954-03-23
•
Expires: 1970-03-16
Abstract
No abstract record available.
Inventors
- 👤 Adams Robert Lee
- 👤 Reavis Hollis Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:21
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/64
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1633386A
Cited
US1664586A
Cited
US1768452A
Cited
US1755139A
Cited
US1729871A
Cited
US1930435A
Cited
US1972986A
Cited
US2050076A
Cited
US1983817A
Cited
US2044746A
Cited
US2061513A
Cited
US2068600A
Cited
US2341192A
Cited
US2307315A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-22 | 1957-09-21 | 1958-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-22 | 1961-09-21 | 1962-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-22 | 1965-09-21 | 1966-03-23 | $7700.00 | Window Closed / Lapsed |