US3478843A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mist type coolant spray unit
Assignee: Daystar Corp
•
Filing: 1968-06-06
•
Granted: 1969-11-18
•
Expires: 1988-06-06
Abstract
No abstract record available.
Inventors
- 👤 Fred H Eckardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:01
CPC Classifications
B; B23; B23Q; B23Q11/00; B23Q11/10; B23Q11/1038; B23Q11/1046; Y; Y02; Y02P; Y02P70/00; Y02P70/10; Y10; Y10T; Y10T408/00; Y10T408/44; Y10T408/45; Y10T408/458
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2857019A
Cited
US2719604A
Cited
US2850323A
Cited
US2946244A
Cited
US3096668A
Cited
US3270836A
Cited
US3364800A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-17 | 1973-05-19 | 1973-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-17 | 1977-05-19 | 1977-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-17 | 1981-05-19 | 1981-11-18 | $7700.00 | Window Closed / Lapsed |