Patent US3119579A successfully refreshed from Google Patents.
US3119579A
Expired / Lapsed
US
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Balloon construction
Assignee: Northrop Grumman Guidance and Electronics Co Inc
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Filing: 1960-09-23
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Granted: 1964-01-28
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Expires: 1980-09-23
Abstract
No abstract record available.
Inventors
- 👤 Wesley C Borgeson
- 👤 Harvey E Henjum
- 👤 Gordon R Whitnah
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:54
CPC Classifications
B; B64; B64B; B64B1/00; B64B1/06; B64B1/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A BALLOON COMPRISING IN COMBINATION AN AERODYNAMICALLY SHAPED GAS ENVELOPE, AN AIR INFLATABLE BALLONET LOCATED WITHIN SAID GAS ENVELOPE, FIRST PRESSURIZING MEANS FOR REGULATING THE AIR PRESSURE WITHIN SAID BALLONET, INFLATABLE STABILIZING MEANS ATTACHED NEAR ONE END OF SAID GAS ENVELOPE, AND SECOND PRESSURIZING MEANS FOR INFLATING SAID STABILIZING MEANS SOLELY WITH AIR AND FOR REGULATING THE AIR PRESSURE WITHIN SAID STABILIZING MEANS INDEPENDENTLY OF THE PRESSURE WITHIN THE GAS ENVELOPE AND THE BALLONET.
Claim 2
Dependent Claim
74 words
A BALLOON COMPRISING IN COMBINATION AN AERODYNAMICALLY SHAPED GAS ENVELOPE, AN AIR INFLATABLE BALLONET LOCATED WITHIN SAID GAS ENVELOPE, FIRST PRESSURIZING MEANS FOR REGULATING THE AIR PRESSURE WITHIN SAID BALLONET, INFLATABLE STABILIZING MEANS ATTACHED NEAR ONE END OF SAID GAS ENVELOPE, AND SECOND PRESSURIZING MEANS FOR INFLATING SAID STABILIZING MEANS SOLELY WITH AIR AND FOR REGULATING THE AIR PRESSURE WITHIN SAID STABILIZING MEANS INDEPENDENTLY OF THE PRESSURE WITHIN THE GAS ENVELOPE AND THE BALLONET.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-01-27 | 1967-07-29 | 1968-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-27 | 1971-07-29 | 1972-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-27 | 1975-07-29 | 1976-01-28 | $7700.00 | Window Closed / Lapsed |