US3108765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Balloon having an external ballonet
Assignee: General Mills Inc
•
Filing: 1960-01-18
•
Granted: 1963-10-29
•
Expires: 1980-01-18
Abstract
No abstract record available.
Inventors
- 👤 Vernon H Stone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:11
CPC Classifications
B; B64; B64B; B64B1/00; B64B1/58; B64B1/62
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A CAPTIVE BALLOON COMPRISING IN COMBINATION A FIRST GAS BAG FOR CONTAINING A LIFTING GAS, SAID GAS BAG BEING RELATIVELY NON-ELASTIC, A SECOND GAS BAG, SAID SECOND GAS BAG BEING RELATIVELY ELASTIC, SAID SECOND BAG LOCATED EXTERNALLY OF SAID FIRST BAG, AND MEANS PROVIDING AN UNRESTRICTED PASSAGE FOR THE LIFTING GAS TO FLOW FREELY AND CONTINUOUSLY FROM SAID FIRST BAG INTO SAID SECOND BAG IN RESPONSE TO A RELATIVE PRESSURE INCREASE WITHIN SAID FIRST BAG AS COMPARED TO THE EXTERNAL ATMOSPHERIC PRESSURE, AND FROM SAID SECOND BAG INTO SAID FIRST BAG IN RESPONSE TO A RELATIVE PRESSURE DECREASE WITHIN SAID FIRST BAG.
Claim 2
Dependent Claim
102 words
A CAPTIVE BALLOON COMPRISING IN COMBINATION A FIRST GAS BAG FOR CONTAINING A LIFTING GAS, SAID GAS BAG BEING RELATIVELY NON-ELASTIC, A SECOND GAS BAG, SAID SECOND GAS BAG BEING RELATIVELY ELASTIC, SAID SECOND BAG LOCATED EXTERNALLY OF SAID FIRST BAG, AND MEANS PROVIDING AN UNRESTRICTED PASSAGE FOR THE LIFTING GAS TO FLOW FREELY AND CONTINUOUSLY FROM SAID FIRST BAG INTO SAID SECOND BAG IN RESPONSE TO A RELATIVE PRESSURE INCREASE WITHIN SAID FIRST BAG AS COMPARED TO THE EXTERNAL ATMOSPHERIC PRESSURE, AND FROM SAID SECOND BAG INTO SAID FIRST BAG IN RESPONSE TO A RELATIVE PRESSURE DECREASE WITHIN SAID FIRST BAG.
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) | 1966-10-28 | 1967-04-29 | 1967-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-28 | 1971-04-29 | 1971-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-28 | 1975-04-29 | 1975-10-29 | $7700.00 | Window Closed / Lapsed |