US2633455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Smoke generator
Assignee: Individual
•
Filing: 1944-03-31
•
Granted: 1953-03-31
•
Expires: 1964-03-31
Abstract
No abstract record available.
Inventors
- 👤 Finkelstein Leo
- 👤 Sidney J Magram
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:08
CPC Classifications
A; A01; A01G; A01G13/00; A01G13/06; A01M; A01M13/00; C; C06; C06D; C06D3/00; F; F41; F41H; F41H9/00; F41H9/06; F41H9/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1864754A
Cited
USRE16841E
Cited
US1599948A
Cited
US1895956A
Cited
US1972600A
Cited
US2173756A
Cited
US2159241A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-30 | 1956-09-29 | 1957-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-30 | 1960-09-29 | 1961-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-30 | 1964-09-29 | 1965-03-31 | $7700.00 | Window Closed / Lapsed |