Patent US2656766A successfully refreshed from Google Patents.
US2656766A
Expired / Lapsed
US
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Apparatus for production of reliefs
Assignee: STONE CREST STUDIOS Inc
•
Filing: 1951-02-16
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Granted: 1953-10-27
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Expires: 1971-02-16
Abstract
No abstract record available.
Inventors
- 👤 Robert E Martens
- 👤 Lewis A Whinnery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:04
CPC Classifications
B; B44; B44B; B44B1/00; B44B1/02; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/301176; Y10T409/302856
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2511956A
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US2099612A
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GB417663A
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US2047013A
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US2172313A
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US2307503A
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US2330647A
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US2335127A
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US2386816A
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US2494663A
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US2559575A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-26 | 1957-04-27 | 1957-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-26 | 1961-04-27 | 1961-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-26 | 1965-04-27 | 1965-10-27 | $7700.00 | Window Closed / Lapsed |