Patent US2805836A successfully refreshed from Google Patents.
US2805836A
Expired / Lapsed
US
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Cut-off gate construction
Assignee: BEAUMONT BIRCH CO
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Filing: 1954-08-20
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Granted: 1957-09-10
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Expires: 1974-08-20
Abstract
No abstract record available.
Inventors
- 👤 Reginald W Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:37
CPC Classifications
F; F16; F16K; F16K3/00; F16K3/02; F16K3/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-09 | 1961-03-11 | 1961-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-09 | 1965-03-11 | 1965-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-09 | 1969-03-11 | 1969-09-10 | $7700.00 | Window Closed / Lapsed |