Patent US1331359A successfully refreshed from Google Patents.
US1331359A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air-cushion
Assignee: Individual
•
Filing: 1919-11-22
•
Granted: 1920-02-17
•
Expires: 1939-11-22
Abstract
No abstract record available.
Inventors
- 👤 Parrott Arthur Hughes
- 👤 Round Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:53
CPC Classifications
B; B64; B64D; B64D25/00; B60; B60R; B60R21/00; B60R21/02; B60R21/04; B60R2021/0407; B64D2201/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1923-02-16 | 1923-08-18 | 1924-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-02-16 | 1927-08-18 | 1928-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-02-16 | 1931-08-18 | 1932-02-17 | $7700.00 | Window Closed / Lapsed |