US1351538A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Indicator for flying-machines
Assignee: Individual
•
Filing: 1917-09-29
•
Granted: 1920-08-31
•
Expires: 1937-09-29
Abstract
No abstract record available.
Inventors
- 👤 Reynolds John Newberry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:12
CPC Classifications
B; B64; B64D; B64D45/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1923-08-31 | 1924-03-01 | 1924-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-08-31 | 1928-03-01 | 1928-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-08-31 | 1932-03-01 | 1932-08-31 | $7700.00 | Window Closed / Lapsed |