US3476913A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric sauna bath heater
Assignee: O M BERVE CO
•
Filing: 1966-03-25
•
Granted: 1969-11-04
•
Expires: 1986-03-25
Abstract
No abstract record available.
Inventors
- 👤 Orven M Berve
- 👤 Elwin F Rich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:09
CPC Classifications
F; F24; F24H; F24H3/00; F24H3/02; F24H3/04; F24H3/0405; A; A61; A61H; A61H33/00; A61H33/06; A61H33/063
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR958137A
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US1706515A
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US1716791A
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DE892950C
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DE948633C
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US2654018A
Cited
US2709214A
Cited
US2844699A
Cited
US2938101A
Cited
US2919338A
Cited
GB884956A
Cited
US3348021A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-03 | 1973-05-05 | 1973-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-03 | 1977-05-05 | 1977-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-03 | 1981-05-05 | 1981-11-04 | $7700.00 | Window Closed / Lapsed |