Patent US2949647A successfully refreshed from Google Patents.
US2949647A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sashless window frame structure
Assignee: Individual
•
Filing: 1958-06-16
•
Granted: 1960-08-23
•
Expires: 1978-06-16
Abstract
No abstract record available.
Inventors
- 👤 Migneault Romuald
- 👤 Fernand W Migneault
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:32
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/48; H01J29/51; H01J29/70; H01J29/701; H01J31/00; H01J31/08; H01J31/10; H01J31/20; Y; Y10; Y10S; Y10S292/00; Y10S292/46; Y10T; Y10T292/00; Y10T292/68
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1944232A
Cited
US2307634A
Cited
US2530724A
Cited
US2565092A
Cited
US2784461A
Cited
US2842810A
Cited
US2841834A
Cited
US2877511A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-23 | 1964-02-22 | 1964-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-23 | 1968-02-22 | 1968-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-23 | 1972-02-22 | 1972-08-23 | $7700.00 | Window Closed / Lapsed |