US2417592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Smoke generator
Assignee: Aerial Products Inc
•
Filing: 1943-08-28
•
Granted: 1947-03-18
•
Expires: 1963-08-28
Abstract
No abstract record available.
Inventors
- 👤 Dwyer Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:51
CPC Classifications
F; F41; F41H; F41H9/00; F41H9/06; F41H9/08; Y; Y10; Y10S; Y10S206/00; Y10S206/803
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1548693A
Cited
GB275830A
Cited
US1858456A
Cited
US2294415A
Cited
US2328916A
Cited
US2366261A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-03-17 | 1950-09-16 | 1951-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-17 | 1954-09-16 | 1955-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-17 | 1958-09-16 | 1959-03-18 | $7700.00 | Window Closed / Lapsed |