US2847749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for making valley tile
Assignee: Individual
•
Filing: 1953-09-02
•
Granted: 1958-08-19
•
Expires: 1973-09-02
Abstract
No abstract record available.
Inventors
- 👤 Gus W Lang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:52
CPC Classifications
B; B28; B28B; B28B5/00; B28B5/02; B28B5/021; B28B5/025; B28B3/00; B28B3/12; B28B3/123
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1663805A
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US900778A
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US1073541A
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US1377188A
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US1570504A
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US2443683A
Cited
US2531574A
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US2586714A
Cited
US2620513A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-18 | 1962-02-17 | 1962-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-18 | 1966-02-17 | 1966-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-18 | 1970-02-17 | 1970-08-19 | $7700.00 | Window Closed / Lapsed |