US3439885A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bronze wool shield for aerospace and atmospheric vehicles
Assignee: FRED J SACKLEH
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Filing: 1967-07-06
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Granted: 1969-04-22
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Expires: 1987-07-06
Abstract
No abstract record available.
Inventors
- 👤 Fred J Sackleh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:34
CPC Classifications
B; B64; B64C; B64C1/00; B64C1/38; B64G; B64G1/00; B64G1/22; B64G1/52; B64G1/56; F; F16; F16L; F16L59/00; F16L59/12; Y; Y10; Y10S; Y10S220/00; Y10S220/23; Y10T; Y10T29/00; Y10T29/49; Y10T29/49801; Y10T29/49826; Y10T29/49879
Claims Analysis
Total Claims: 0
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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) | 1972-04-21 | 1972-10-21 | 1973-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-21 | 1976-10-21 | 1977-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-21 | 1980-10-21 | 1981-04-22 | $7700.00 | Window Closed / Lapsed |