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US2607135A
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Detachable calk
Assignee: CLAUDE HARMON
•
Filing: 1950-02-08
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Granted: 1952-08-19
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Expires: 1970-02-08
Abstract
No abstract record available.
Inventors
- 👤 Langer Adolph Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:26
CPC Classifications
A; A43; A43C; A43C15/00; A43C15/16; A43C15/161
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE434343C
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US2149893A
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US2315874A
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US2299927A
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US2222747A
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US2235774A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-19 | 1956-02-18 | 1956-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-19 | 1960-02-18 | 1960-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-19 | 1964-02-18 | 1964-08-19 | $7700.00 | Window Closed / Lapsed |