Patent US5071430A successfully refreshed from Google Patents.
US3473359A
Expired / Lapsed
US
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Grooving device
Assignee: Individual
•
Filing: 1967-05-22
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Granted: 1969-10-21
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Expires: 1987-05-22
Abstract
No abstract record available.
Inventors
- 👤 Alvin Earl Joslin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:16
CPC Classifications
B; B21; B21D; B21D15/00; B21D15/04; B21D15/06; B23; B23D; B23D21/00; B23D21/04; Y; Y10; Y10T; Y10T407/00; Y10T407/12; Y10T407/22; Y10T407/2202; Y10T407/2206; Y10T408/00; Y10T408/83; Y10T408/85; Y10T408/858; Y10T408/8583
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) | 1972-10-20 | 1973-04-21 | 1973-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-20 | 1977-04-21 | 1977-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-20 | 1981-04-21 | 1981-10-21 | $7700.00 | Window Closed / Lapsed |