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Patent US2551590A successfully refreshed from Google Patents.
US2551590A
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Window structure
Assignee: CHARLES I GIRSCHOWITCH
•
Filing: 1946-06-05
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Granted: 1951-05-08
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Expires: 1966-06-05
Abstract
No abstract record available.
Inventors
- 👤 Tito A Ferri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:49
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)
US1268554A
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US1639148A
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US1864559A
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US1925817A
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US1931738A
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US2112634A
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US2131251A
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US2267140A
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US2442363A
Cited
US2441741A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-07 | 1954-11-06 | 1955-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-07 | 1958-11-06 | 1959-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-07 | 1962-11-06 | 1963-05-08 | $7700.00 | Window Closed / Lapsed |