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US2641427A
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Assignee: BREVARD WILLIAMS
•
Filing: 1949-12-10
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Granted: 1953-06-09
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Expires: 1969-12-10
Abstract
No abstract record available.
Inventors
- 👤 Jens I Krogh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:12
CPC Classifications
A; A47; A47G; A47G1/00; A47G1/16; A47G1/1606; A47G1/1613
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1405083A
Cited
US1600919A
Cited
US1908200A
Cited
US2271928A
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US2263901A
Cited
US2448137A
Cited
US2478256A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-08 | 1956-12-08 | 1957-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-08 | 1960-12-08 | 1961-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-08 | 1964-12-08 | 1965-06-09 | $7700.00 | Window Closed / Lapsed |