Patent US3038323A successfully refreshed from Google Patents.
US3038323A
Expired / Lapsed
US
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Elastic coupling particularly for oil burners
Assignee: Individual
•
Filing: 1960-11-01
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Granted: 1962-06-12
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Expires: 1980-11-01
Abstract
No abstract record available.
Inventors
- 👤 Wallman Knut Olof Lennart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:46
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/50; F16D3/56; F23; F23K; F23K5/00; F23K5/02; F23K5/14; F23K5/142; F23K5/145; Y; Y10; Y10T; Y10T403/00; Y10T403/57
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-11 | 1965-12-11 | 1966-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-11 | 1969-12-11 | 1970-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-11 | 1973-12-11 | 1974-06-12 | $7700.00 | Window Closed / Lapsed |