US2672959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Window construction
Assignee: Individual
•
Filing: 1949-12-20
•
Granted: 1954-03-23
•
Expires: 1969-12-20
Abstract
No abstract record available.
Inventors
- 👤 Young William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:03
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/32; E06B3/34; E06B3/42; E06B3/44; B; B60; B60J; B60J1/00; B60J1/08; B60J1/12; B63; B63B; B63B19/00; B63B2019/0007; B63B2019/0038; E06B2003/4438; E06B2003/4453; E06B3/4407
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
NL60343C
Cited
US1715579A
Cited
US1050924A
Cited
US1180726A
Cited
US1995764A
Cited
US1913716A
Cited
US2297051A
Cited
US2607453A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-22 | 1957-09-21 | 1958-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-22 | 1961-09-21 | 1962-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-22 | 1965-09-21 | 1966-03-23 | $7700.00 | Window Closed / Lapsed |