US1182187A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power flue-cleaner.
Assignee: WALKER-MOORE ROCK DRILL MANUFACTURING AND SUPPLY Co
•
Filing: 1912-06-05
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Granted: 1916-05-09
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Expires: 1932-06-05
Abstract
No abstract record available.
Inventors
- 👤 Wilber E Mceldowney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:38
CPC Classifications
B; B08; B08B; B08B9/00; B08B9/02; B08B9/027; B08B9/04; B08B9/049; B08B9/051
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) | 1919-05-09 | 1919-11-08 | 1920-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1923-05-09 | 1923-11-08 | 1924-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1927-05-09 | 1927-11-08 | 1928-05-09 | $7700.00 | Window Closed / Lapsed |