US981031A
Expired / Lapsed
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Assignee: Individual
•
Filing: 1910-08-08
•
Granted: 1911-01-10
•
Expires: 1930-08-08
Abstract
No abstract record available.
Inventors
- 👤 Arthur Philip Stitzel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:50
CPC Classifications
B; B01; B01D; B01D25/00; B01D25/32; B01D25/38; B01D24/00; B01D24/02; B01D24/20; B01D24/205; B01D24/38; B01D24/44; B01D24/46; B01D24/4605; B01D24/461
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) | 1914-01-09 | 1914-07-11 | 1915-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1918-01-09 | 1918-07-11 | 1919-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1922-01-09 | 1922-07-11 | 1923-01-10 | $7700.00 | Window Closed / Lapsed |