Patent US2540419A successfully refreshed from Google Patents.
US2540419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door and window frame
Assignee: Individual
•
Filing: 1947-12-01
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Granted: 1951-02-06
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Expires: 1967-12-01
Abstract
No abstract record available.
Inventors
- 👤 Felix P Blanchard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:57
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/32; E06B3/34; E06B3/42; E06B3/44; E06B1/00; E06B1/04; E06B1/06; E06B2003/4438; E06B2003/4446; E06B2003/4492
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1623772A
Cited
US1648712A
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US1946169A
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US2032795A
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US2093864A
Cited
US2297056A
Cited
US2191660A
Cited
US2292806A
Cited
US2281864A
Cited
US2375257A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-05 | 1954-08-07 | 1955-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-05 | 1958-08-07 | 1959-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-05 | 1962-08-07 | 1963-02-06 | $7700.00 | Window Closed / Lapsed |