Patent US1341129A successfully refreshed from Google Patents.
US1341129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dust-collector
Assignee: Individual
•
Filing: 1920-01-28
•
Granted: 1920-05-25
•
Expires: 1940-01-28
Abstract
No abstract record available.
Inventors
- 👤 Ernest R Hopkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:23
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/42; B01D46/48; B01D46/02; B01D46/04; B01D46/4272; B01D46/66; B01D46/74; B01D46/76; Y; Y10; Y10S; Y10S15/00; Y10S15/08
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) | 1923-05-25 | 1923-11-24 | 1924-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-05-25 | 1927-11-24 | 1928-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-05-25 | 1931-11-24 | 1932-05-25 | $7700.00 | Window Closed / Lapsed |