US3702607A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improved spray mask
Assignee: Individual
•
Filing: 1971-05-13
•
Granted: 1972-11-14
•
Expires: 1991-05-13
Abstract
Abstract A SPRAY MASK COMPRISING A SAFETY HAT TO WHICH IS COUPLED A CLEAR PLASTIC FACE SHIELD AND A CLOTH SHROUD COVER FROM THE BRIM THEREOF TO THE USER''S SHOULDER. CLEAR ACETATE FILM IS SO ARRANGED IN CANISTERS COUPLED TO THE MASK AS TO FACILITATE THE FILM BEING QUICKLY AND EFFICIENTLY CAUSED TO MOVE ACROSS THE FACE SHIELD, THEREBY ENSURING THAT THE USER''S VISION IS CONTINUOUSLY MAINTAINED DESPITE OVERSPRAY CONDITIONS. THE MASK ALSO COMPRISES A VENTILATION SYSTEM.
Inventors
- 👤 Roy G Tucker
- 👤 David H Blasenak
- 👤 Ralph W Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:54
CPC Classifications
A; A61; A61F; A61F9/00; A61F9/02; A61F9/025; A62; A62B; A62B18/00; A62B18/04
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) | 1975-11-14 | 1976-05-15 | 1976-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-14 | 1980-05-15 | 1980-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-14 | 1984-05-15 | 1984-11-14 | $7700.00 | Window Closed / Lapsed |