US3078845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable dust eliminator
Assignee: Individual
•
Filing: 1961-03-24
•
Granted: 1963-02-26
•
Expires: 1981-03-24
Abstract
No abstract record available.
Inventors
- 👤 Wilbur F Kohlmeyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:26
CPC Classifications
A; A62; A62B; A62B18/00; A62B18/04; A01; A01D; A01D41/00; A01D41/12; A01D41/1252; Y; Y10; Y10S; Y10S2/00; Y10S2/901
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
IN A PORTABLE APPARATUS FOR THE PROTECTION AGAINST DUST A HEAD ENCLOSURE COMPRISING A FLAT TOP WALL, A PERPENDICULARLY DEPENDING PERIPHERAL WALL CONNECTED TO THE TOP WALL, A TRANSPARENT AREA INCLUDED IN SAID PERIPHERAL WALL FOR ENABLING A WEARER TO OBSERVE THE OPERATION OF A MACHINE OR THE LIKE WEARING THE HEAD ENCLOSURE, THE BOTTOM EDGE OF THE PERIPHERAL WALL HAVING ARCUATE NOTCHES THEREIN GENERALLY CONFORMING TO THE SHOULDERS WHEREBY THE HEAD ENCLOSURE FORMS A HOOD FOR THE ENTIRE HEAD AND NECK, AND MEANS FOR SUPPORTING THE HEAD ENCLOSURE FROM THE SHOULDERS OF THE WEARER, SAID LAST NAMED MEANS IN-
Claim 2
Dependent Claim
100 words
IN A PORTABLE APPARATUS FOR THE PROTECTION AGAINST DUST A HEAD ENCLOSURE COMPRISING A FLAT TOP WALL, A PERPENDICULARLY DEPENDING PERIPHERAL WALL CONNECTED TO THE TOP WALL, A TRANSPARENT AREA INCLUDED IN SAID PERIPHERAL WALL FOR ENABLING A WEARER TO OBSERVE THE OPERATION OF A MACHINE OR THE LIKE WEARING THE HEAD ENCLOSURE, THE BOTTOM EDGE OF THE PERIPHERAL WALL HAVING ARCUATE NOTCHES THEREIN GENERALLY CONFORMING TO THE SHOULDERS WHEREBY THE HEAD ENCLOSURE FORMS A HOOD FOR THE ENTIRE HEAD AND NECK, AND MEANS FOR SUPPORTING THE HEAD ENCLOSURE FROM THE SHOULDERS OF THE WEARER, SAID LAST NAMED MEANS IN-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |