US3522646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing clips for springs
Assignee: Individual
•
Filing: 1967-10-25
•
Granted: 1970-08-04
•
Expires: 1987-10-25
Abstract
No abstract record available.
Inventors
- 👤 James Sibthorp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:30
CPC Classifications
A; A47; A47C; A47C31/00; A47C31/02; A47C31/04; A47C31/06; B; B21; B21D; B21D53/00; B21D53/36; Y; Y10; Y10T; Y10T24/00; Y10T24/34; Y10T24/3427; Y10T24/3484; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49861; Y10T29/49908; Y10T29/49915; Y10T29/49925
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA738305A
Cited
US2036787A
Cited
US2322290A
Cited
US2845693A
Cited
US3010195A
Cited
US2843192A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-03 | 1974-02-02 | 1974-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-03 | 1978-02-02 | 1978-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-03 | 1982-02-02 | 1982-08-04 | $7700.00 | Window Closed / Lapsed |