US3512477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Matched roll registry system
Assignee: MODERN ENGRAVING AND MACHINE CORP
•
Filing: 1967-08-21
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Granted: 1970-05-19
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Expires: 1987-08-21
Abstract
No abstract record available.
Inventors
- 👤 Robert F Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:03
CPC Classifications
C; C23; C23F; C23F1/00; C23F1/08; B; B44; B44B; B44B5/00; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19623
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US415044A
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US2660002A
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US2561018A
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GB717486A
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US2937591A
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US3048512A
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US3037396A
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US3042996A
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US3214310A
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US3141313A
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US3302558A
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US3373627A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |