US2596438A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Security Sash & Screen Co
•
Filing: 1951-11-30
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Granted: 1952-05-13
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Expires: 1971-11-30
Abstract
No abstract record available.
Inventors
- 👤 David R Rollings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:37
CPC Classifications
F; F16; F16B; F16B5/00; F16B5/06; E; E05; E05D; E05D15/00; E06; E06B; E06B9/00; E06B9/52; E06B2009/527; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44017; Y10T24/44026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1157349A
Cited
US2026830A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-13 | 1955-11-12 | 1956-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-13 | 1959-11-12 | 1960-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-13 | 1963-11-12 | 1964-05-13 | $7700.00 | Window Closed / Lapsed |