US1282881A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic dilator.
Assignee: Individual
•
Filing: 1917-07-07
•
Granted: 1918-10-29
•
Expires: 1937-07-07
Abstract
No abstract record available.
Inventors
- 👤 John T Landis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:39
CPC Classifications
A; A61; A61M; A61M29/00; A61M29/02; A61F; A61F2/00; A61F2/95; A61F2/958
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) | 1921-10-28 | 1922-04-29 | 1922-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1925-10-28 | 1926-04-29 | 1926-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1929-10-28 | 1930-04-29 | 1930-10-29 | $7700.00 | Window Closed / Lapsed |