US2576777A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Window construction
Assignee: Individual
•
Filing: 1950-02-23
•
Granted: 1951-11-27
•
Expires: 1970-02-23
Abstract
No abstract record available.
Inventors
- 👤 George T Clements
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:02
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/04; E06B3/28; E06B7/00; E06B7/16; E06B7/22; E06B7/23; E06B7/2301
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1866882A
Cited
US2378163A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-26 | 1955-05-28 | 1955-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-26 | 1959-05-28 | 1959-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-26 | 1963-05-28 | 1963-11-27 | $7700.00 | Window Closed / Lapsed |