US3517576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutting process
Assignee: Gulf Research and Development Co
•
Filing: 1967-11-09
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Granted: 1970-06-30
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Expires: 1987-11-09
Abstract
No abstract record available.
Inventors
- 👤 Lloyd W Hilty
- 👤 Robert W Maier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:44
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/26; G01N33/32; B; B26; B26D; B26D1/00; G01N17/00; G01N2203/00; G01N2203/003; G01N2203/0053; G01N2203/0058; G01N2203/0076; G01N2203/0078; G01N2203/02; G01N2203/022; G01N2203/0244; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/303752; Y10T409/303808; Y10T83/00; Y10T83/02; Y10T83/0333; Y10T83/0385; Y10T83/0393
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) | 1973-06-29 | 1973-12-29 | 1974-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-29 | 1977-12-29 | 1978-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-29 | 1981-12-29 | 1982-06-30 | $7700.00 | Window Closed / Lapsed |