Patent US1309903A successfully refreshed from Google Patents.
US1309903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floyd j
Assignee: —
•
Filing: —
•
Granted: 1919-07-15
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Expires: 1936-07-15
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:21
CPC Classifications
C; C01; C01B; C01B3/00; C01B3/02; C01B3/32; C01B3/34; C01B3/38; C01B3/384; B; B01; B01J; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00477; B01J2208/00495
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) | 1922-07-14 | 1923-01-13 | 1923-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1926-07-14 | 1927-01-13 | 1927-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1930-07-14 | 1931-01-13 | 1931-07-15 | $7700.00 | Window Closed / Lapsed |