Patent US2915050A successfully refreshed from Google Patents.
US2915050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
allred
Assignee: —
•
Filing: —
•
Granted: 1959-12-01
•
Expires: 1976-12-01
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:19
CPC Classifications
—
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US345998A
Cited
US1024474A
Cited
US1132386A
Cited
US1391832A
Cited
GB243879A
Cited
FR715524A
Cited
DE856976C
Cited
US2722923A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-30 | 1963-06-01 | 1963-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-30 | 1967-06-01 | 1967-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-30 | 1971-06-01 | 1971-12-01 | $7700.00 | Window Closed / Lapsed |