Patent US4970939A successfully refreshed from Google Patents.
Patent US2948087A successfully refreshed from Google Patents.
US2948087A
Expired / Lapsed
US
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Plate graining apparatus
Assignee: REPRODUCTION RES LAB Inc
•
Filing: 1958-11-03
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Granted: 1960-08-09
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Expires: 1978-11-03
Abstract
No abstract record available.
Inventors
- 👤 Caton Thomas Raymer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:15
CPC Classifications
B; B24; B24B; B24B41/00; B24B41/04; B24B41/047; B24B29/00; B24B29/005; B24B47/00; B24B47/10; B24B7/00; B24B7/10; B24B7/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
US2735238A
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US1138683A
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US1909902A
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US1666347A
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US1982648A
Cited
US2050777A
Cited
US2176939A
Cited
US2865142A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-09 | 1964-02-08 | 1964-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-09 | 1968-02-08 | 1968-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-09 | 1972-02-08 | 1972-08-09 | $7700.00 | Window Closed / Lapsed |