Patent US2616531A successfully refreshed from Google Patents.
US2616531A
Expired / Lapsed
US
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Door jamb metal reinforcement
Assignee: Individual
•
Filing: 1950-08-31
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Granted: 1952-11-04
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Expires: 1970-08-31
Abstract
No abstract record available.
Inventors
- 👤 Robert M Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:08
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/32; E06B3/34; E06B3/42; E06B3/46; E06B3/4654
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
AT26341B
Cited
US1267415A
Cited
US1716023A
Cited
US1994976A
Cited
US2026886A
Cited
US2513445A
Cited
US2538925A
Cited
US2564968A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-04 | 1956-05-05 | 1956-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-04 | 1960-05-05 | 1960-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-04 | 1964-05-05 | 1964-11-04 | $7700.00 | Window Closed / Lapsed |