US2990723A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Admiral Corp
•
Filing: 1958-06-02
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Granted: 1961-07-04
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Expires: 1978-06-02
Abstract
No abstract record available.
Inventors
- 👤 Clarence J Holpuch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:17
CPC Classifications
F; F16; F16D; F16D71/00; F16H; F16H31/00; F16H31/003; F16H31/005; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1526; Y10T74/1553; Y10T74/1555; Y10T74/1558; Y10T74/1577; Y10T74/21; Y10T74/2133
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1307369A
Cited
GB371989A
Cited
US2150680A
Cited
US2272929A
Cited
US2323840A
Cited
US2558953A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-03 | 1965-01-02 | 1965-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-03 | 1969-01-02 | 1969-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-03 | 1973-01-02 | 1973-07-04 | $7700.00 | Window Closed / Lapsed |