US3503573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disk flying craft
Assignee: JAMES N MODESTI
•
Filing: 1967-02-24
•
Granted: 1970-03-31
•
Expires: 1987-02-24
Abstract
No abstract record available.
Inventors
- 👤 James N Modesti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:21
CPC Classifications
B; B64; B64C; B64C29/00; B64C29/0008; B64C29/0041; B64C29/0066; B64C39/00; B64C39/001
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3199809A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-30 | 1973-09-29 | 1974-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-30 | 1977-09-29 | 1978-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-30 | 1981-09-29 | 1982-03-31 | $7700.00 | Window Closed / Lapsed |