US2541675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination window frame construction
Assignee: DONALD O STILES
•
Filing: 1949-01-29
•
Granted: 1951-02-13
•
Expires: 1969-01-29
Abstract
No abstract record available.
Inventors
- 👤 Richard H Stiles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:44
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/32; E06B3/50; E06B3/5054; E06B3/5063; E06B1/00; E06B1/04; E06B1/12; E06B1/18; E06B3/34; E06B3/42; E06B3/44; E06B2003/4438; E06B2003/4453; E06B2003/4492
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2129921A
Cited
US2169865A
Cited
US2367129A
Cited
US2375910A
Cited
US2416269A
Cited
US2426802A
Cited
US2490259A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-12 | 1954-08-14 | 1955-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-12 | 1958-08-14 | 1959-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-12 | 1962-08-14 | 1963-02-13 | $7700.00 | Window Closed / Lapsed |