US2699488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aquarium immersion type heater with automatic temperature control
Assignee: AQUA LIFE PRODUCTS CORP
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Filing: 1954-08-24
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Granted: 1955-01-11
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Expires: 1974-08-24
Abstract
No abstract record available.
Inventors
- 👤 Henry M Arak
- 👤 Milton J Weitzman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:11
CPC Classifications
H; H05; H05B; H05B1/00; H05B1/02; H05B1/0202; H05B1/0208; A; A01; A01K; A01K63/00; A01K63/06; A01K63/065; H05B3/00; H05B3/78; H05B3/80
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) | 1958-01-10 | 1958-07-12 | 1959-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-10 | 1962-07-12 | 1963-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-10 | 1966-07-12 | 1967-01-11 | $7700.00 | Window Closed / Lapsed |