US3405886A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making inflationable erectable hollow structures
Assignee: Westinghouse Electric Corp
•
Filing: 1962-05-23
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Granted: 1968-10-15
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Expires: 1982-05-23
Abstract
No abstract record available.
Inventors
- 👤 Charles N Gosnell
- 👤 Stanley H Saulson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:05
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/42; H01Q1/427; B; B64; B64G; B64G99/00; Y; Y10; Y10S; Y10S135/00; Y10S135/904; Y10S135/905
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3024941A
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US3098229A
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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) | 1971-10-15 | 1972-04-15 | 1972-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-15 | 1976-04-15 | 1976-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-15 | 1980-04-15 | 1980-10-15 | $7700.00 | Window Closed / Lapsed |