US2835934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sliding window construction
Assignee: Individual
•
Filing: 1955-06-01
•
Granted: 1958-05-27
•
Expires: 1975-06-01
Abstract
No abstract record available.
Inventors
- 👤 Franzblau Abraham
- 👤 Robert M Franzblan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:18
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/32; E06B3/34; E06B3/42; E06B3/46; E06B3/4609; Y; Y10; Y10S; Y10S292/00; Y10S292/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1181331A
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US1975275A
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US2116754A
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US2192519A
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US2207772A
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US2325263A
Cited
US2572124A
Cited
US2663917A
Cited
GB662248A
Cited
US2694840A
Cited
US2685110A
Cited
US2699204A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-26 | 1961-11-25 | 1962-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-26 | 1965-11-25 | 1966-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-26 | 1969-11-25 | 1970-05-27 | $7700.00 | Window Closed / Lapsed |