Patent US2869187A successfully refreshed from Google Patents.
US2869187A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sliding type window construction
Assignee: Individual
•
Filing: 1953-05-13
•
Granted: 1959-01-20
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Expires: 1973-05-13
Abstract
No abstract record available.
Inventors
- 👤 Liebman Louis
- 👤 Gray Emanuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:35
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/32; E06B3/34; E06B3/42; E06B3/46; E06B3/4609; E06B3/4618; Y; Y10; Y10S; Y10S292/00; Y10S292/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2571677A
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US2680269A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |