Patent US2641029A successfully refreshed from Google Patents.
US2641029A
Expired / Lapsed
US
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Coupling means and trim for laminated building units
Assignee: Individual
•
Filing: 1950-02-24
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Granted: 1953-06-09
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Expires: 1970-02-24
Abstract
No abstract record available.
Inventors
- 👤 Fred H Trimmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:07
CPC Classifications
E; E04; E04F; E04F19/00; E04F19/02; E04F19/06; E04F19/062; E04F19/064
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US369927A
Cited
US2118525A
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US2177699A
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US2317634A
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US2309389A
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US2345018A
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US2373789A
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US2371329A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-08 | 1956-12-08 | 1957-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-08 | 1960-12-08 | 1961-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-08 | 1964-12-08 | 1965-06-09 | $7700.00 | Window Closed / Lapsed |