US2979338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1959-05-08
•
Granted: 1961-04-11
•
Expires: 1979-05-08
Abstract
No abstract record available.
Inventors
- 👤 Arthur J Dwyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:23
CPC Classifications
B; B62; B62B; B62B1/00; B62B1/18; B62B1/20; B62B2202/00; B62B2202/42
Claims Analysis
Total Claims: 0
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CA462621A
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GB191304968A
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US1187781A
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GB324920A
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US2416492A
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US2811367A
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FR1157626A
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US2918296A
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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) | 1964-04-10 | 1964-10-10 | 1965-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-10 | 1968-10-10 | 1969-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-10 | 1972-10-10 | 1973-04-11 | $7700.00 | Window Closed / Lapsed |