US3390491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inflatable electromagnetically shielded enclosure
Assignee: Garrett Corp
•
Filing: 1966-07-20
•
Granted: 1968-07-02
•
Expires: 1986-07-20
Abstract
No abstract record available.
Inventors
- 👤 Howard L Hayden
- 👤 Joseph P Tobin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:30
CPC Classifications
H; H05; H05K; H05K9/00; H05K9/0001; E; E04; E04H; E04H15/00; E04H15/20; E04H2015/202; E04H2015/203; E04H2015/205; E04H2015/209
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2698020A
Cited
US2895490A
Cited
US3047860A
Cited
FR1235093A
Cited
US3184742A
Cited
US3282533A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-02 | 1972-01-01 | 1972-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-02 | 1976-01-01 | 1976-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-02 | 1980-01-01 | 1980-07-02 | $7700.00 | Window Closed / Lapsed |