US2768620A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stone splitting press
Assignee: Individual
•
Filing: 1954-10-26
•
Granted: 1956-10-30
•
Expires: 1974-10-26
Abstract
No abstract record available.
Inventors
- 👤 Chris C Jenkins
- 👤 Frank P Slater
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:38
CPC Classifications
B; B28; B28D; B28D1/00; B28D1/22; B28D1/222; Y; Y10; Y10T; Y10T225/00; Y10T225/30; Y10T225/371; Y10T83/00; Y10T83/869; Y10T83/8821; Y10T83/8828
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1723112A
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US1796995A
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US2138767A
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US2188318A
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US2152193A
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US2514352A
Cited
US2453216A
Cited
US2557098A
Cited
FR987850A
Cited
US2580553A
Cited
US2552958A
Cited
US2723657A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-30 | 1960-04-30 | 1960-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-30 | 1964-04-30 | 1964-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-30 | 1968-04-30 | 1968-10-30 | $7700.00 | Window Closed / Lapsed |