US2843728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft lighting and signaling structure
Assignee: Individual
•
Filing: 1954-10-07
•
Granted: 1958-07-15
•
Expires: 1974-10-07
Abstract
No abstract record available.
Inventors
- 👤 Grant V W Roth
- 👤 Lester V Walsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:22
CPC Classifications
B; B64; B64D; B64D47/00; B64D47/02; B64D47/06; B60; B60Q; B60Q1/00; B60Q1/26; B60Q1/2611
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1548958A
Cited
US1683580A
Cited
GB350673A
Cited
US1946379A
Cited
US2058977A
Cited
US2375075A
Cited
US2571158A
Cited
US2719282A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-14 | 1962-01-13 | 1962-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-14 | 1966-01-13 | 1966-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-14 | 1970-01-13 | 1970-07-15 | $7700.00 | Window Closed / Lapsed |