US2602501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Window construction
Assignee: Individual
•
Filing: 1948-08-02
•
Granted: 1952-07-08
•
Expires: 1968-08-02
Abstract
No abstract record available.
Inventors
- 👤 Charles J Roos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:08
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/02; E06B3/32; E06B3/34; E06B3/42; E06B3/44; Y; Y10; Y10S; Y10S160/00; Y10S160/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1645355A
Cited
AT112452B
Cited
US1855806A
Cited
US2080394A
Cited
US2120359A
Cited
US2377684A
Cited
US2470921A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-08 | 1956-01-07 | 1956-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-08 | 1960-01-07 | 1960-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-08 | 1964-01-07 | 1964-07-08 | $7700.00 | Window Closed / Lapsed |