US3428535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of extracting potable water from urine
Assignee: RTX Corp
•
Filing: 1965-05-24
•
Granted: 1969-02-18
•
Expires: 1985-05-24
Abstract
No abstract record available.
Inventors
- 👤 David F Putnam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:56
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/02; C02F1/04; C02F1/18; B; B64; B64G; B64G1/00; B64G1/22; B64G1/46; C02F1/46; C02F1/461; C02F1/467; C02F1/4672; C02F1/4674
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
IN THEPROCESS OF EXTRACTING POTABLE WATER FROM URINE, THE IMPROVEMENT WHICH COMPRISES: ELECTROLYTICALLY DECOMPOSING THE SODIUM CLORIDE IN THE URINE TO LIBERATE CHLORINE, COLLECTING THE CLORINE THUS LIBERATED, AND PRETREATING THE RAW URINE WITH THE COLLECTED CHLORINE TO FIX THE AMMONIA THEREIN.
Claim 2
Dependent Claim
42 words
IN THEPROCESS OF EXTRACTING POTABLE WATER FROM URINE, THE IMPROVEMENT WHICH COMPRISES: ELECTROLYTICALLY DECOMPOSING THE SODIUM CLORIDE IN THE URINE TO LIBERATE CHLORINE, COLLECTING THE CLORINE THUS LIBERATED, AND PRETREATING THE RAW URINE WITH THE COLLECTED CHLORINE TO FIX THE AMMONIA THEREIN.
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) | 1972-02-18 | 1972-08-19 | 1973-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-18 | 1976-08-19 | 1977-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-18 | 1980-08-19 | 1981-02-18 | $7700.00 | Window Closed / Lapsed |