US2587547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Window construction
Assignee: Individual
•
Filing: 1946-09-23
•
Granted: 1952-02-26
•
Expires: 1966-09-23
Abstract
No abstract record available.
Inventors
- 👤 Steingruber George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:00
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/32; E06B3/34; E06B3/42; E06B3/44; E06B2003/4438; E06B2003/4453; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/1039; Y10T292/1041; Y10T292/68; Y10T292/696
Claims Analysis
Total Claims: 0
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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) | 1955-02-25 | 1955-08-27 | 1956-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-25 | 1959-08-27 | 1960-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-25 | 1963-08-27 | 1964-02-26 | $7700.00 | Window Closed / Lapsed |