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US2591925A
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Assignee: Individual
•
Filing: 1951-01-27
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Granted: 1952-04-08
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Expires: 1971-01-27
Abstract
No abstract record available.
Inventors
- 👤 Erbe George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:38
CPC Classifications
E; E04; E04G; E04G17/00; E04G17/06; E04G17/0642; Y; Y10; Y10T; Y10T24/00; Y10T24/45; Y10T24/45225; Y10T24/45984; Y10T24/45995; Y10T29/00; Y10T29/53; Y10T29/53696; Y10T29/53991; Y10T403/00; Y10T403/61
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US927840A
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US1265778A
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US1464452A
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US1769245A
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US1666272A
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US1907933A
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US1946830A
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US2234492A
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US2442472A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-08 | 1955-10-08 | 1956-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-08 | 1959-10-08 | 1960-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-08 | 1963-10-08 | 1964-04-08 | $7700.00 | Window Closed / Lapsed |