US2986621A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switch contact assemblies
Assignee: Individual
•
Filing: 1959-05-05
•
Granted: 1961-05-30
•
Expires: 1979-05-05
Abstract
No abstract record available.
Inventors
- 👤 Midgley Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:22
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/54; H01H50/56; H01H63/00; H01H63/02; H01H63/06; Y; Y10; Y10S; Y10S200/00; Y10S200/46
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
NL58807C
Cited
DE692074C
Cited
US2500413A
Cited
US2575806A
Cited
US2765381A
Cited
FR1134894A
Cited
US2838631A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-29 | 1964-11-28 | 1965-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-29 | 1968-11-28 | 1969-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-29 | 1972-11-28 | 1973-05-30 | $7700.00 | Window Closed / Lapsed |