US3676172A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vapor coalescence of powder coatings
Assignee: EIDP Inc
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Filing: 1970-12-14
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Granted: 1972-07-11
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Expires: 1990-12-14
Abstract
Abstract THE PROCESS FOR FORMING A CONTINUOUS POLYMERIC COATING ON A SUBSTRATE COMPRISES THE FOLLOWING STEPS: (1) APPLYING A COATING OF A THERMOPLASTIC POLYMERIC POWDER ON A SUBSTRATE, (2) EXPOSING THE COATING TO A PARTIAL PRESSURE OF A COALESCING VAPOR FOR THE POLYMERIC POWDER, AND (3) ABSORBING SUFFICIENT VAPOR INTO THE COATING TO COALESCE THE POWDER PARTICLES AND HEATING THE COALESCED COATING TO REMOVE SOLVENT.
Inventors
- 👤 John W Van Dyk
- 👤 Dao-Tsing Wu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:31
CPC Classifications
B; B05; B05D; B05D3/00; B05D3/04; B05D3/0466; B05D2401/00; B05D2401/30; B05D2401/32
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) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |