US2951922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical contactor assembly
Assignee: Vapor Heating Corp
•
Filing: 1958-11-07
•
Granted: 1960-09-06
•
Expires: 1978-11-07
Abstract
No abstract record available.
Inventors
- 👤 Harry L Myrent
- 👤 Stanley J Szczesniak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 15:53
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/16; H01H50/18; H01H50/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2106581A
Cited
US2266536A
Cited
US2433710A
Cited
US2874245A
Cited
US2758169A
Cited
US2811617A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-06 | 1964-03-07 | 1964-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-06 | 1968-03-07 | 1968-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-06 | 1972-03-07 | 1972-09-06 | $7700.00 | Window Closed / Lapsed |