Patent US3604394A successfully refreshed from Google Patents.
US3604394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating apparatus
Assignee: Fujifilm Holdings Corp
•
Filing: 1969-03-10
•
Granted: 1971-09-14
•
Expires: 1989-03-10
Abstract
Abstract In a web-coating apparatus, a scraper extends rearwardly, parallel to the web being coated, from the doctor blade to, and in peripheral contact with, a roller disposed in the coating material accumulated behind the doctor blade.
Inventors
- 👤 Naoyoshi Ohno
- 👤 Goro Akashi
- 👤 Tokuaki Miyake
- 👤 Masaaki Fujiyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:23
CPC Classifications
B; B29; B29C; B29C41/00; B29C41/34; B29C41/36
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
21 words
The apparatus as claimed in claim 1, wherein said roller rotates in a direction tending to feed material towards said doctor-blade.
Claim 2
Dependent Claim
30 words
The apparatus as claimed in claim 2, wherein said scraper blade extends from said doctor-blade means, spaced slightly from the blade edge which determines the thickness of the applied coating.
Claim 3
Dependent Claim
30 words
The apparatus as claimed in claim 1, wherein said scraper blade extends from said doctor-blade means, spaced slightly from the blade edge which determines the thickness of the applied coating.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |