US2869223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming multi-groove pulleys
Assignee: AUTOMATIC STEEL PRODUCTS Inc
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Filing: 1955-03-30
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Granted: 1959-01-20
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Expires: 1975-03-30
Abstract
No abstract record available.
Inventors
- 👤 Robert J Killian
- 👤 Glenn M Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:35
CPC Classifications
B; B21; B21D; B21D53/00; B21D53/26; B21D53/261; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49453; Y10T29/4946
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |