US2756992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for shade marking
Assignee: Individual
•
Filing: 1950-09-26
•
Granted: 1956-07-31
•
Expires: 1970-09-26
Abstract
No abstract record available.
Inventors
- 👤 Rosenthal Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:01
CPC Classifications
D; D06; D06H; D06H1/00; D06H1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US871923A
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GB196358A
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US1500424A
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US1843098A
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US1806076A
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US2148375A
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US2427275A
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US2522784A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-31 | 1960-01-30 | 1960-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-31 | 1964-01-30 | 1964-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-31 | 1968-01-30 | 1968-07-31 | $7700.00 | Window Closed / Lapsed |