US3058164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making artificial stone
Assignee: Individual
•
Filing: 1960-03-16
•
Granted: 1962-10-16
•
Expires: 1980-03-16
Abstract
No abstract record available.
Inventors
- 👤 Bartholomew M Rowe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:33
CPC Classifications
B; B28; B28B; B28B19/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US856519A
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US1168492A
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US1570998A
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US1608281A
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AU744627A
Cited
US1681727A
Cited
US2144388A
Cited
DE714341C
Cited
US2517432A
Cited
GB766896A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-15 | 1966-04-16 | 1966-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-15 | 1970-04-16 | 1970-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-15 | 1974-04-16 | 1974-10-16 | $7700.00 | Window Closed / Lapsed |