US3329093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for maintaining a working flexing cushion
Assignee: Individual
•
Filing: 1965-04-14
•
Granted: 1967-07-04
•
Expires: 1985-04-14
Abstract
No abstract record available.
Inventors
- 👤 Thomas M Bear
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:02
CPC Classifications
E; E03; E03B; E03B11/00; E03B11/02; E03B11/06; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3115
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A WATER PRESSURE SUPPLY SYSTEM COMPRISING A CONDUIT FOR RECEIVING WATER THROUGH A WATER SOURCE LINE AT A FIRST END FROM A WATER DELIVERY LINE, A PRESSURIZING GAS MIXTURE INCLUDING AT LEAST ONE RELATIVELY WATER-INSOLUBLE GAS INTRODUCED IN THE OTHER END OF THE CONDUIT AND IN COMMUNICATION WITH SAID WATER FOR APPLYING PRESSURE TO SAID WATER, ONE GAS OF SAID GAS MIXTURE REMAINING GASEOUS AT THE OPERATING PRESSURE OF THE SYSTEM, ANOTHER GAS OF SAID GAS MIXTURE CHANGING BETWEEN A GASEOUS AND LIQUID STATE AT THE OPERATING PRESSURE OF THE SYSTEM FOR THE PURPOSE OF MAINTAINING A RELATIVELY CONSTANT PRESSURE ON THE WATER, THE FIRST END OF SAID CONDUIT IN COMMUNICATION WITH A WATER OUTLET PASSAGE FOR SUPPLYING WATER UNDER PRESSURE TO SAID OUTLET PASSAGE, AN ADJUSTABLE WATER PRES-
Claim 2
Dependent Claim
129 words
A WATER PRESSURE SUPPLY SYSTEM COMPRISING A CONDUIT FOR RECEIVING WATER THROUGH A WATER SOURCE LINE AT A FIRST END FROM A WATER DELIVERY LINE, A PRESSURIZING GAS MIXTURE INCLUDING AT LEAST ONE RELATIVELY WATER-INSOLUBLE GAS INTRODUCED IN THE OTHER END OF THE CONDUIT AND IN COMMUNICATION WITH SAID WATER FOR APPLYING PRESSURE TO SAID WATER, ONE GAS OF SAID GAS MIXTURE REMAINING GASEOUS AT THE OPERATING PRESSURE OF THE SYSTEM, ANOTHER GAS OF SAID GAS MIXTURE CHANGING BETWEEN A GASEOUS AND LIQUID STATE AT THE OPERATING PRESSURE OF THE SYSTEM FOR THE PURPOSE OF MAINTAINING A RELATIVELY CONSTANT PRESSURE ON THE WATER, THE FIRST END OF SAID CONDUIT IN COMMUNICATION WITH A WATER OUTLET PASSAGE FOR SUPPLYING WATER UNDER PRESSURE TO SAID OUTLET PASSAGE, AN ADJUSTABLE WATER PRES-
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) | 1970-07-03 | 1971-01-02 | 1971-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-03 | 1975-01-02 | 1975-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-03 | 1979-01-02 | 1979-07-04 | $7700.00 | Window Closed / Lapsed |