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Patent US2845153A successfully refreshed from Google Patents.
US2845153A
Expired / Lapsed
US
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Window structures
Assignee: PROTEX WEATHERSTRIP Manufacturing CO
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Filing: 1954-04-26
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Granted: 1958-07-29
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Expires: 1974-04-26
Abstract
No abstract record available.
Inventors
- 👤 John C West
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:49
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/02; E06B7/08; E06B7/084
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2734601A
Cited
US1178804A
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US1335929A
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US2207147A
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US2225011A
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US2327246A
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US2280389A
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US2565447A
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US2584928A
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US2479602A
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US2649629A
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US2640232A
Cited
US2641805A
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US2654921A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-28 | 1962-01-27 | 1962-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-28 | 1966-01-27 | 1966-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-28 | 1970-01-27 | 1970-07-29 | $7700.00 | Window Closed / Lapsed |