US3490184A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Taped tension web-skin joint for air inflated structures
Assignee: Birdair Structures Inc
•
Filing: 1968-01-17
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Granted: 1970-01-20
•
Expires: 1988-01-17
Abstract
No abstract record available.
Inventors
- 👤 Walter W Bird
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:13
CPC Classifications
E; E04; E04H; E04H15/00; E04H15/20; E04H15/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3125377A
Cited
US1755300A
Cited
US3010114A
Cited
US3038427A
Cited
US3247627A
Cited
US3373531A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-19 | 1973-07-21 | 1974-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-19 | 1977-07-21 | 1978-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-19 | 1981-07-21 | 1982-01-20 | $7700.00 | Window Closed / Lapsed |