US2826346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Serving holder
Assignee: Keyes Fibre Corp
•
Filing: 1954-05-03
•
Granted: 1958-03-11
•
Expires: 1974-05-03
Abstract
No abstract record available.
Inventors
- 👤 Walter H Randall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:16
CPC Classifications
A; A47; A47G; A47G23/00; A47G23/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1239661A
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US1506515A
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US1952168A
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GB391696A
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US2038721A
Cited
US2244486A
Cited
US2195442A
Cited
US2314935A
Cited
US2298980A
Cited
US2346608A
Cited
US2471932A
Cited
US2601815A
Cited
US2655303A
Cited
US2766919A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-10 | 1961-09-09 | 1962-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-10 | 1965-09-09 | 1966-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-10 | 1969-09-09 | 1970-03-11 | $7700.00 | Window Closed / Lapsed |