US3021077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrostatic coating apparatus
Assignee: Ransburg Corp
•
Filing: 1956-03-20
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Granted: 1962-02-13
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Expires: 1976-03-20
Abstract
No abstract record available.
Inventors
- 👤 William D Gauthier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:53
CPC Classifications
B; B05; B05B; B05B3/00; B05B3/02; B05B3/10; B05B3/1064; B05B5/00; B05B5/025; B05B5/04; B05B5/0403; B05B5/0407; B05B5/001
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
IN APPARATUS FOR ELECTROSTATICALLY SPRAY-COATING A SURFACE WITH DISCRETE PARTICLES OF LIQUID COATING MATERIAL, AN ATOMIZING DEVICE, COMPRISING: AN ATOMIZING MEMBER TERMINATING IN A PERIPHERAL EDGE, INCLUDING AN ELECTRICALLY CONDUCTING LAYER HAVING A PREDETERMINED MULTIMEGOHM PER SQUARE ELECTRICAL RESTIVITY AND A SUBSTANTIALLY ELECTRICALLY INSULATING LAYER IN CONTACT WITH THE ELECTRICALLY CONDUCTING LAYER; MEANS OPERATIVELY ASSOCIATED WITH SAID ELECTRICALLY CONDUCTING LAYER FOR SUPPLYING AN ELECTRIC CURRENT TO SAID ELECTRICALLY CONDUCTING
Claim 2
Dependent Claim
69 words
IN APPARATUS FOR ELECTROSTATICALLY SPRAY-COATING A SURFACE WITH DISCRETE PARTICLES OF LIQUID COATING MATERIAL, AN ATOMIZING DEVICE, COMPRISING: AN ATOMIZING MEMBER TERMINATING IN A PERIPHERAL EDGE, INCLUDING AN ELECTRICALLY CONDUCTING LAYER HAVING A PREDETERMINED MULTIMEGOHM PER SQUARE ELECTRICAL RESTIVITY AND A SUBSTANTIALLY ELECTRICALLY INSULATING LAYER IN CONTACT WITH THE ELECTRICALLY CONDUCTING LAYER; MEANS OPERATIVELY ASSOCIATED WITH SAID ELECTRICALLY CONDUCTING LAYER FOR SUPPLYING AN ELECTRIC CURRENT TO SAID ELECTRICALLY CONDUCTING
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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) | 1965-02-12 | 1965-08-14 | 1966-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-12 | 1969-08-14 | 1970-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-12 | 1973-08-14 | 1974-02-13 | $7700.00 | Window Closed / Lapsed |