US1015145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ammonia-still.
Assignee: DANIEL E KNOWLTON
•
Filing: 1908-01-27
•
Granted: 1912-01-16
•
Expires: 1928-01-27
Abstract
No abstract record available.
Inventors
- 👤 Harry S Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:17
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/01; G05D23/13; G05D23/1306; G05D23/132; G05D23/134; G05D23/136
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) | 1915-01-15 | 1915-07-17 | 1916-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1919-01-15 | 1919-07-17 | 1920-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1923-01-15 | 1923-07-17 | 1924-01-16 | $7700.00 | Window Closed / Lapsed |