US3084663A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Doctor blade for coating apparatus
Assignee: Champion Papers Inc
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Filing: 1960-08-29
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Granted: 1963-04-09
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Expires: 1980-08-29
Abstract
No abstract record available.
Inventors
- 👤 Warner Edgar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:04
CPC Classifications
D; D21; D21H; D21H25/00; D21H25/08; D21H25/12; B; B05; B05C; B05C1/00; B05C1/04; B05C1/08; B05C1/0817; D21H5/00; D21H5/0005; D21H5/006; D21H5/0062; D21H5/0067
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A DOCTOR DEVICE FOR THE APPLICATION OF COATING COMPOSITIONS TO MOVING WEBS AND SHEETS COMPRISING A DOCTOR ROD, A FLEXIBLE HOLDER FOR SAID ROD, SUPPORT MEANS AFFIXED TO SAID HOLDER, SAID DOCTOR ROD HAVING A SURFACE COMPRISED OF A SERIES OF CLOSELY SPACED ALTERNATELY ARRANGED CIRCUMFERENTIAL RIBS AND GROOVES, SAID HOLDER DEFINING A PARTIAL ELONGATED, CHANNEL-LIKE SOCKET RECEIVING SAID ROD THROUGHOUT ITS LENGTH AND HAVING SPACED APART TERMINAL EDGES ONLY CONFORMING TO THE SURFACE PROFILE OF SAID ROD AND IN CLOSE ENGAGEMENT THEREWITH AND SPACED APART A DISTANCE LESS THAN THE DIAMETER OF THE ROD WHEN SAID ROD IS EMPLACED WITHIN SAID SOCKET.
Claim 2
Dependent Claim
103 words
A DOCTOR DEVICE FOR THE APPLICATION OF COATING COMPOSITIONS TO MOVING WEBS AND SHEETS COMPRISING A DOCTOR ROD, A FLEXIBLE HOLDER FOR SAID ROD, SUPPORT MEANS AFFIXED TO SAID HOLDER, SAID DOCTOR ROD HAVING A SURFACE COMPRISED OF A SERIES OF CLOSELY SPACED ALTERNATELY ARRANGED CIRCUMFERENTIAL RIBS AND GROOVES, SAID HOLDER DEFINING A PARTIAL ELONGATED, CHANNEL-LIKE SOCKET RECEIVING SAID ROD THROUGHOUT ITS LENGTH AND HAVING SPACED APART TERMINAL EDGES ONLY CONFORMING TO THE SURFACE PROFILE OF SAID ROD AND IN CLOSE ENGAGEMENT THEREWITH AND SPACED APART A DISTANCE LESS THAN THE DIAMETER OF THE ROD WHEN SAID ROD IS EMPLACED WITHIN SAID SOCKET.
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) | 1966-04-08 | 1966-10-08 | 1967-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-08 | 1970-10-08 | 1971-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-08 | 1974-10-08 | 1975-04-09 | $7700.00 | Window Closed / Lapsed |