US2452228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elastic parachute shroud and method of making it
Assignee: Individual
•
Filing: 1947-03-25
•
Granted: 1948-10-26
•
Expires: 1967-03-25
Abstract
No abstract record available.
Inventors
- 👤 Robert T Dawes
- 👤 Taylor Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:23
CPC Classifications
D; D07; D07B; D07B1/00; D07B1/02; D07B1/04; B; B64; B64D; B64D17/00; D07B2201/00; D07B2201/20; D07B2201/2047; D07B2201/2052; D07B2201/2055; D07B2201/2056; D07B2201/2067; D07B2201/2069; D07B2201/2083; D07B2201/209
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) | 1951-10-26 | 1952-04-26 | 1952-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-26 | 1956-04-26 | 1956-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-26 | 1960-04-26 | 1960-10-26 | $7700.00 | Window Closed / Lapsed |