Patent US2914807A successfully refreshed from Google Patents.
US2914807A
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Extrusion graining process
Assignee: ROBBINS FLOOR PRODUCTS Inc
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Filing: 1955-03-23
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Granted: 1959-12-01
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Expires: 1975-03-23
Abstract
No abstract record available.
Inventors
- 👤 Robbins Edward Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:32
CPC Classifications
D; D06; D06N; D06N7/00; D06N7/0005; D06N7/0028
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US919341A
Cited
US1083275A
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US1663275A
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US1908747A
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US1939045A
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US2154438A
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US2283845A
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US2478885A
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US2573050A
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US2625712A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-30 | 1963-06-01 | 1963-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-30 | 1967-06-01 | 1967-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-30 | 1971-06-01 | 1971-12-01 | $7700.00 | Window Closed / Lapsed |