US2666636A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle spring suspension
Assignee: Holland Co
•
Filing: 1951-03-08
•
Granted: 1954-01-19
•
Expires: 1971-03-08
Abstract
No abstract record available.
Inventors
- 👤 Cal W Wulff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:24
CPC Classifications
B; B61; B61F; B61F5/00; B61F5/02; B61F5/04; B61F5/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1840506A
Cited
US2045299A
Cited
US2105651A
Cited
US2267153A
Cited
US2387265A
Cited
US2387264A
Cited
US2387266A
Cited
US2378097A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-18 | 1957-07-20 | 1958-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-18 | 1961-07-20 | 1962-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-18 | 1965-07-20 | 1966-01-19 | $7700.00 | Window Closed / Lapsed |