US2918542A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hermetically sealed rotary switches
Assignee: INSTR DEV LAB Inc
•
Filing: 1957-06-11
•
Granted: 1959-12-22
•
Expires: 1977-06-11
Abstract
No abstract record available.
Inventors
- 👤 George P Bentley
- 👤 George C Mcnabb
- 👤 Edward L Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 04:03
CPC Classifications
H; H01; H01H; H01H3/00; H01H3/004; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49009; Y10T29/49011
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1420026A
Cited
US1545422A
Cited
US2193254A
Cited
US2273840A
Cited
US2483115A
Cited
US2455864A
Cited
US2661403A
Cited
US2634342A
Cited
US2696658A
Cited
US2707731A
Cited
US2774831A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-21 | 1963-06-22 | 1963-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-21 | 1967-06-22 | 1967-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-21 | 1971-06-22 | 1971-12-22 | $7700.00 | Window Closed / Lapsed |