US2883731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1958-02-06
•
Granted: 1959-04-28
•
Expires: 1978-02-06
Abstract
No abstract record available.
Inventors
- 👤 Wells Bessina
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:07
CPC Classifications
B; B62; B62B; B62B5/00; B62B5/08; B62B5/085; B62B1/00; B62B1/26; Y; Y10; Y10S; Y10S297/00; Y10S297/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US464533A
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GB190318749A
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US958307A
Cited
US1597640A
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US1605550A
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US1970727A
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US2579639A
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US2627217A
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US2572486A
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DE835408C
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US2806711A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-27 | 1962-10-27 | 1963-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-27 | 1966-10-27 | 1967-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-27 | 1970-10-27 | 1971-04-28 | $7700.00 | Window Closed / Lapsed |