US955504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spark-arrester.
Assignee: Individual
•
Filing: 1909-07-29
•
Granted: 1910-04-19
•
Expires: 1929-07-29
Abstract
No abstract record available.
Inventors
- 👤 George R Dunlap
- 👤 Frank E Simons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:45
CPC Classifications
A; A47; A47L; A47L5/00; A47L5/12; A47L5/22; A47L5/36; A47L5/365; Y; Y10; Y10S; Y10S55/00; Y10S55/20
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) | 1913-04-18 | 1913-10-18 | 1914-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1917-04-18 | 1917-10-18 | 1918-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1921-04-18 | 1921-10-18 | 1922-04-19 | $7700.00 | Window Closed / Lapsed |