Patent US2881834A successfully refreshed from Google Patents.
US2881834A
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US
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Back gauge slot closing member
Assignee: E P LAWSON Co Inc
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Filing: 1956-10-09
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Granted: 1959-04-14
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Expires: 1976-10-09
Abstract
No abstract record available.
Inventors
- 👤 Thumim Carl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:06
CPC Classifications
B; B26; B26D; B26D7/00; B26D7/01; B26D7/015; B26D7/016; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/2093; Y10T83/00; Y10T83/606; Y10T83/619; Y10T83/647; Y10T83/6656; Y10T83/6657; Y10T83/666
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) | 1962-04-13 | 1962-10-13 | 1963-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-13 | 1966-10-13 | 1967-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-13 | 1970-10-13 | 1971-04-14 | $7700.00 | Window Closed / Lapsed |