US503373A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Buoyant fabric
Assignee: —
•
Filing: —
•
Granted: 1893-08-15
•
Expires: 1910-08-15
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:33
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/22; B32B5/24; B32B5/26; Y; Y10; Y10T; Y10T428/00; Y10T428/23; Y10T428/239; Y10T428/24; Y10T428/24025; Y10T428/24033; Y10T428/24479; Y10T428/2457; Y10T428/24628; Y10T428/24669
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) | 1896-08-14 | 1897-02-13 | 1897-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1900-08-15 | 1901-02-14 | 1901-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1904-08-15 | 1905-02-14 | 1905-08-16 | $7700.00 | Window Closed / Lapsed |