US3061881A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods for producing three dimensional signs
Assignee: GEORGE W WOELFEL
•
Filing: 1959-05-05
•
Granted: 1962-11-06
•
Expires: 1979-05-05
Abstract
No abstract record available.
Inventors
- 👤 Sherno Stanley Anthony
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:23
CPC Classifications
G; G09; G09F; G09F7/00; B; B29; B29C; B29C51/00; B29C51/10; B29L; B29L2031/00; B29L2031/712; B29L2031/7176; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1132502A
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US1564578A
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US2013194A
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US2651079A
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US2779057A
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US2777165A
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US2651871A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-05 | 1966-05-07 | 1966-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-05 | 1970-05-07 | 1970-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-05 | 1974-05-07 | 1974-11-06 | $7700.00 | Window Closed / Lapsed |