Patent US2899897A successfully refreshed from Google Patents.
US2899897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
ludwig
Assignee: —
•
Filing: —
•
Granted: 1959-08-18
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Expires: 1976-08-18
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:23
CPC Classifications
F; F16; F16D; F16D21/00; F16D21/02; F16D21/06; B; B60; B60K; B60K17/00; B60K17/28; F16D2021/0684
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2026945A
Cited
US2057559A
Cited
US2136049A
Cited
US2237322A
Cited
FR864187A
Cited
US2367076A
Cited
FR1015291A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-17 | 1963-02-16 | 1963-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-17 | 1967-02-16 | 1967-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-17 | 1971-02-16 | 1971-08-18 | $7700.00 | Window Closed / Lapsed |