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Patent US910787A successfully refreshed from Google Patents.
US3519087A
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US
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Assignee: Individual
•
Filing: 1968-12-18
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Granted: 1970-07-07
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Expires: 1988-12-18
Abstract
No abstract record available.
Inventors
- 👤 Silvio Santi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:35
CPC Classifications
B; B25; B25D; B25D1/00; B25D1/16; B21; B21D; B21D1/00; B21D1/06; B21D1/065; B25B; B25B27/00; B25B27/02; B25D1/12; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53796; Y10T29/53839; Y10T29/53909; Y10T29/5393
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) | 1973-07-06 | 1974-01-05 | 1974-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-06 | 1978-01-05 | 1978-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-06 | 1982-01-05 | 1982-07-07 | $7700.00 | Window Closed / Lapsed |