US2770018A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Window structure
Assignee: Borg Warner Corp
•
Filing: 1953-11-17
•
Granted: 1956-11-13
•
Expires: 1973-11-17
Abstract
No abstract record available.
Inventors
- 👤 John W Seibert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:56
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/32; E06B3/34; E06B3/42; E06B3/44; E06B2003/4438; E06B2003/4446
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2303418A
Cited
US2275955A
Cited
US2307647A
Cited
US2337633A
Cited
US2558525A
Cited
US2643422A
Cited
US2561511A
Cited
US2631336A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-13 | 1960-05-14 | 1960-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-13 | 1964-05-14 | 1964-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-13 | 1968-05-14 | 1968-11-13 | $7700.00 | Window Closed / Lapsed |