US1219124A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Airship.
Assignee: Individual
•
Filing: 1916-06-22
•
Granted: 1917-03-13
•
Expires: 1936-06-22
Abstract
No abstract record available.
Inventors
- 👤 Thomas R Macmechen
- 👤 Walter V Kamp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:03
CPC Classifications
B; B64; B64B; B64B1/00; B64B1/06; B64B1/08; E; E04; E04C; E04C3/00; E04C3/02; E04C3/04; E04C2003/0486; E04C2003/0491
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) | 1920-03-12 | 1920-09-11 | 1921-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-03-12 | 1924-09-11 | 1925-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-03-12 | 1928-09-11 | 1929-03-13 | $7700.00 | Window Closed / Lapsed |