Patent US4605001A successfully refreshed from Google Patents.
US3019952A
Expired / Lapsed
US
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Assignee: Individual
•
Filing: 1959-05-18
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Granted: 1962-02-06
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Expires: 1979-05-18
Abstract
No abstract record available.
Inventors
- 👤 Brewster Forrest Oliver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:18
CPC Classifications
A; A45; A45C; A45C3/00; A45F; A45F3/00; A45F3/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1370636A
Cited
US1586058A
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FR703299A
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US2144266A
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US2210351A
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US2249841A
Cited
US2533850A
Cited
DE893999C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-05 | 1965-08-07 | 1966-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-05 | 1969-08-07 | 1970-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-05 | 1973-08-07 | 1974-02-06 | $7700.00 | Window Closed / Lapsed |