US2774997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sash and sash frames
Assignee: ALUMATIC Corp OF AMERICA
•
Filing: 1951-08-02
•
Granted: 1956-12-25
•
Expires: 1971-08-02
Abstract
No abstract record available.
Inventors
- 👤 Zitomer Abe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:18
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/96; E06B3/32; 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)
USRE23931E
Cited
US696110A
Cited
US1493750A
Cited
US1864066A
Cited
US2013207A
Cited
US2114617A
Cited
US2262670A
Cited
US2303129A
Cited
US2303418A
Cited
US2292273A
Cited
US2307647A
Cited
US2421309A
Cited
US2433835A
Cited
US2430772A
Cited
US2563730A
Cited
US2560752A
Cited
US2519168A
Cited
US2705062A
Cited
US2612660A
Cited
US2631336A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-25 | 1960-06-25 | 1960-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-25 | 1964-06-25 | 1964-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-25 | 1968-06-25 | 1968-12-25 | $7700.00 | Window Closed / Lapsed |