US2703635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corner construction for window frames
Assignee: WISCO Inc
•
Filing: 1949-04-02
•
Granted: 1955-03-08
•
Expires: 1969-04-02
Abstract
No abstract record available.
Inventors
- 👤 Gunnar V Carlson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:50
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/96; E06B3/964; E06B3/9642; E06B3/968; E06B3/98; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T29/49922; Y10T403/00; Y10T403/46; Y10T403/4602
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1169461A
Cited
US1972997A
Cited
US1851608A
Cited
US1998366A
Cited
US2114617A
Cited
US2323055A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-03-07 | 1958-09-06 | 1959-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-03-07 | 1962-09-06 | 1963-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-03-07 | 1966-09-06 | 1967-03-08 | $7700.00 | Window Closed / Lapsed |