US2532828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tagline device
Assignee: EARL C MARSHALL
•
Filing: 1945-11-10
•
Granted: 1950-12-05
•
Expires: 1965-11-10
Abstract
No abstract record available.
Inventors
- 👤 Robert W Westfall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:54
CPC Classifications
B; B66; B66C; B66C13/00; B66C13/04; B66C13/06; B66D; B66D1/00; B66D2700/00; B66D2700/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1118207A
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US1803481A
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US1950317A
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US2085333A
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US2110433A
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US2166479A
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US2193407A
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US2303002A
Cited
US2385011A
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US2367912A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-04 | 1954-06-05 | 1954-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-04 | 1958-06-05 | 1958-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-04 | 1962-06-05 | 1962-12-05 | $7700.00 | Window Closed / Lapsed |