US2436508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine mounted hood device for protecting attendants from dust
Assignee: EDWARD BABCOCK
•
Filing: 1947-03-18
•
Granted: 1948-02-24
•
Expires: 1967-03-18
Abstract
No abstract record available.
Inventors
- 👤 Fairbanks Glen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:29
CPC Classifications
A; A01; A01F; A01F21/00; Y; Y10; Y10S; Y10S29/00; Y10S29/086; Y10S55/00; Y10S55/29
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US642166A
Cited
US1401710A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-02-23 | 1951-08-25 | 1952-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-02-23 | 1955-08-25 | 1956-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-02-23 | 1959-08-25 | 1960-02-24 | $7700.00 | Window Closed / Lapsed |