US2527996A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hanpley
Assignee: —
•
Filing: —
•
Granted: 1950-10-31
•
Expires: 1967-10-31
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:29
CPC Classifications
—
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2378708A
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US2324778A
Cited
US1486438A
Cited
US2299396A
Cited
US1886627A
Cited
US2055703A
Cited
US2155655A
Cited
US2020594A
Cited
GB390193A
Cited
US2150761A
Cited
US1265725A
Cited
GB172118A
Cited
US1465258A
Cited
US1896527A
Cited
GB381230A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-30 | 1954-05-01 | 1954-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-30 | 1958-05-01 | 1958-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-30 | 1962-05-01 | 1962-10-31 | $7700.00 | Window Closed / Lapsed |