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US2453943A
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Assignee: Individual
•
Filing: 1946-03-18
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Granted: 1948-11-16
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Expires: 1966-03-18
Abstract
No abstract record available.
Inventors
- 👤 Smith Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:27
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/34; E02F3/3417
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US856018A
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US890061A
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US947964A
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US2067879A
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US2116351A
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US2254464A
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US2310284A
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US2327473A
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US2352068A
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US2347456A
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US2387687A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-16 | 1952-05-17 | 1952-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-16 | 1956-05-17 | 1956-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-16 | 1960-05-17 | 1960-11-16 | $7700.00 | Window Closed / Lapsed |