US2813672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surge limiter
Assignee: MARQUARDT AIRCRAFT Co
•
Filing: 1953-09-03
•
Granted: 1957-11-19
•
Expires: 1973-09-03
Abstract
No abstract record available.
Inventors
- 👤 Henry A Long
- 👤 Burt L Taylor
- 👤 James C Wise
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:23
CPC Classifications
F; F04; F04D; F04D27/00; F04D27/02; F04D27/0207; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2514; Y10T137/2521; Y10T137/2544; Y10T137/2557
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1659354A
Cited
US1333986A
Cited
US1363513A
Cited
US1744872A
Cited
US2404324A
Cited
US2409533A
Cited
US2424137A
Cited
US2645240A
Cited
US2781634A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-18 | 1961-05-20 | 1961-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-18 | 1965-05-20 | 1965-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-18 | 1969-05-20 | 1969-11-19 | $7700.00 | Window Closed / Lapsed |