Patent US2511341A successfully refreshed from Google Patents.
US2511341A
Expired / Lapsed
US
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Window construction
Assignee: Individual
•
Filing: 1945-10-11
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Granted: 1950-06-13
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Expires: 1965-10-11
Abstract
No abstract record available.
Inventors
- 👤 Oscar H Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:29
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/32; E06B3/50; E06B3/5054; E06B3/5063; E06B3/34; E06B3/42; E06B3/44; E06B2003/4438; E06B2003/4446; E06B2003/4492
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US450081A
Cited
US653399A
Cited
US805549A
Cited
US802458A
Cited
US1126884A
Cited
US1942776A
Cited
US2114896A
Cited
US2203184A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-12 | 1953-12-12 | 1954-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-12 | 1957-12-12 | 1958-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-12 | 1961-12-12 | 1962-06-13 | $7700.00 | Window Closed / Lapsed |