Patent US2607453A successfully refreshed from Google Patents.
US2607453A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Window frame
Assignee: Individual
•
Filing: 1948-08-10
•
Granted: 1952-08-19
•
Expires: 1968-08-10
Abstract
No abstract record available.
Inventors
- 👤 Francis J Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:56
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/32; E06B3/325; E06B1/00; E06B1/02; E06B3/54; E06B3/64
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US710859A
Cited
US712403A
Cited
US1180726A
Cited
US1713555A
Cited
US1897643A
Cited
US1940055A
Cited
US2015447A
Cited
US2024192A
Cited
US2148930A
Cited
US2103532A
Cited
US2122151A
Cited
US2124775A
Cited
US2383691A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-19 | 1956-02-18 | 1956-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-19 | 1960-02-18 | 1960-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-19 | 1964-02-18 | 1964-08-19 | $7700.00 | Window Closed / Lapsed |