US3527676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multistage distillation for desalinizing saline water
Assignee: GEORGE D HEIDELBAUGH
•
Filing: 1968-07-01
•
Granted: 1970-09-08
•
Expires: 1988-07-01
Abstract
No abstract record available.
Inventors
- 👤 Jay P Hingst
- 👤 George D Heidelbaugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:24
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/02; C02F1/04; C02F1/06; Y; Y10; Y10S; Y10S159/00; Y10S159/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3119752A
Cited
US3218241A
Cited
US3367845A
Cited
US3351120A
Cited
US3334023A
Cited
US3401094A
Cited
US3427227A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-07 | 1974-03-09 | 1974-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-07 | 1978-03-09 | 1978-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-07 | 1982-03-09 | 1982-09-08 | $7700.00 | Window Closed / Lapsed |