US2992139A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for electrostatic spraying of non-conductors
Assignee: DESOTO CHEMICAL COATINGS Inc
•
Filing: 1958-05-02
•
Granted: 1961-07-11
•
Expires: 1978-05-02
Abstract
No abstract record available.
Inventors
- 👤 Grant E Arhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:50
CPC Classifications
B; B05; B05D; B05D1/00; B05D1/02; B05D1/04; B05D1/045; C; C09; C09D; C09D129/00; C09D129/14; B05D5/00; B05D5/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A METHOD OF COATING A NORMALLY NON-CONDUCTIVE BASE ARTICLE, COMPRISING APPLYING TO THE SURFACE OF SAID ARTICLE A COATING MATERIAL DISTRIBUTED IN A LIQUID MEDIUM CONTAINING IN SOLUTION A RELATIVELY SMALL PORTION OF PHOSPHORIC ACID, DRYING, AND THEREAFTER SPRAYING SAID COATED ARTICLE IN AN ELECTROSTATIC FIELD WITH A SECOND COATING.
Claim 2
Independent Claim
50 words
A METHOD OF COATING A NORMALLY NON-CONDUCTIVE BASE ARTICLE, COMPRISING APPLYING TO THE SURFACE OF SAID ARTICLE A COATING MATERIAL DISTRIBUTED IN A LIQUID MEDIUM CONTAINING IN SOLUTION A RELATIVELY SMALL PORTION OF PHOSPHORIC ACID, DRYING, AND THEREAFTER SPRAYING SAID COATED ARTICLE IN AN ELECTROSTATIC FIELD WITH A SECOND COATING.
References Cited (Backward Citations)
US1881445A
Cited
US2583000A
Cited
US2723921A
Cited
US2719820A
Cited
US2761797A
Cited
US2772190A
Cited
US2617742A
Cited
US2762726A
Cited
US2698814A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |