US3374580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weather sealing strip for doors
Assignee: Steelcraft Manufacturing Co
•
Filing: 1965-04-22
•
Granted: 1968-03-26
•
Expires: 1985-04-22
Abstract
No abstract record available.
Inventors
- 👤 Robert O Ruff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:08
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/16; E06B7/22; E06B7/23; E06B7/2316; E06B7/2318
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1974638A
Cited
US2230985A
Cited
US2728118A
Cited
US2949651A
Cited
US3114946A
Cited
US3273287A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-26 | 1971-09-25 | 1972-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-26 | 1975-09-25 | 1976-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-26 | 1979-09-25 | 1980-03-26 | $7700.00 | Window Closed / Lapsed |