US3395903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air and water contact body as employed in cooling towers
Assignee: Individual
•
Filing: 1966-07-15
•
Granted: 1968-08-06
•
Expires: 1986-07-15
Abstract
No abstract record available.
Inventors
- 👤 Norback Per Gunnar
- 👤 George W Meek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:04
CPC Classifications
F; F28; F28C; F28C1/00; F28C1/04; F28C1/02; F28D; F28D7/00; F28F; F28F25/00; F28F25/02; F28F25/08; F28F25/087; Y; Y02; Y02B; Y02B30/00; Y02B30/70; Y10; Y10S; Y10S261/00; Y10S261/11; Y10T; Y10T428/00; Y10T428/24; Y10T428/24628; Y10T428/24669; Y10T428/24694; Y10T428/24711; Y10T428/24719
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) | 1971-08-06 | 1972-02-05 | 1972-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-06 | 1976-02-05 | 1976-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-06 | 1980-02-05 | 1980-08-06 | $7700.00 | Window Closed / Lapsed |