US2825602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Humidifying head
Assignee: National Controls Inc
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Filing: 1956-05-08
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Granted: 1958-03-04
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Expires: 1976-05-08
Abstract
No abstract record available.
Inventors
- 👤 James R Rabbitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:57
CPC Classifications
B; B05; B05B; B05B7/00; B05B7/02; B05B7/04; B05B7/0416; B05B7/0441; B05B7/0475; B05B1/00; B05B1/30; B05B1/3006; B05B15/00; B05B15/50; B05B15/52; B05B15/522; B05B15/5223; B05B15/5225; B05B7/12; B05B7/1254; B05B7/1263; B05B7/1272; B05B1/3033; B05B1/304; B05B1/3046
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) | 1961-03-03 | 1961-09-02 | 1962-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-03 | 1965-09-02 | 1966-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-03 | 1969-09-02 | 1970-03-04 | $7700.00 | Window Closed / Lapsed |