US2998970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Load spring suspension and levelling device
Assignee: Individual
•
Filing: 1958-11-21
•
Granted: 1961-09-05
•
Expires: 1978-11-21
Abstract
No abstract record available.
Inventors
- 👤 Latta O Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:09
CPC Classifications
B; B60; B60G; B60G17/00; B60G17/015; B60G17/0152; B60G17/0157; B60G17/02; B60G17/023; B60G2202/00; B60G2202/40; B60G2202/42; B60G2204/00; B60G2204/40; B60G2204/419; B60G2204/4191; B60G2500/00; B60G2500/30; Y; Y10; Y10S; Y10S267/00; Y10S267/01; Y10S280/00; Y10S280/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB139299A
Cited
US1429411A
Cited
US1543969A
Cited
GB311097A
Cited
US2191211A
Cited
US2224717A
Cited
US2301398A
Cited
DE803715C
Cited
US2824733A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-04 | 1965-03-06 | 1965-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-04 | 1969-03-06 | 1969-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-04 | 1973-03-06 | 1973-09-05 | $7700.00 | Window Closed / Lapsed |