US2422085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Window ventilator
Assignee: WEATHER SEAL Inc
•
Filing: 1945-03-30
•
Granted: 1947-06-10
•
Expires: 1965-03-30
Abstract
No abstract record available.
Inventors
- 👤 Harold A Etling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:54
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/02; E06B7/08; E06B7/082
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US992055A
Cited
US1009173A
Cited
US1530626A
Cited
US1929219A
Cited
US1939312A
Cited
US2308262A
Cited
US2347137A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-06-09 | 1950-12-09 | 1951-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-06-09 | 1954-12-09 | 1955-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-06-09 | 1958-12-09 | 1959-06-10 | $7700.00 | Window Closed / Lapsed |