US3356067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Doctor blades having relieved ends
Assignee: Lodding Engineering Corp
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Filing: 1966-09-14
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Granted: 1967-12-05
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Expires: 1986-09-14
Abstract
No abstract record available.
Inventors
- 👤 Leonard L Krasnow
- 👤 Marshall S Green
- 👤 Costello Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:58
CPC Classifications
D; D21; D21G; D21G3/00; D21G3/005; B; B31; B31F; B31F1/00; B31F1/12; B31F1/14; B31F1/145
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
AN ELONGATED DOCTOR BLADE OF GENERALLY UNIFORM THICKNESS HAVING A LENGTH MANY TIMES ITS THICKNESS AND A WIDTH SEVERAL TIMES ITS THICKNESS, ONE OF THE ELONGATED EDGES OF THE BLADE BEING A WORKING EDGE ADAPTED TO ENGAGE A COATING MATERIAL TO SMOOTH IT OVER A SURFACE, THE OPPOSITE EDGE PORTION OF THE BLADE BEING ADAPTED TO BE HELD IN A DOCTOR BLADE HOLDER, THUS PROVIDING A GENERALLY FREE WORKING PORTION OF THE BLADE WHICH EXTENDS BEYOND
Claim 2
Dependent Claim
76 words
AN ELONGATED DOCTOR BLADE OF GENERALLY UNIFORM THICKNESS HAVING A LENGTH MANY TIMES ITS THICKNESS AND A WIDTH SEVERAL TIMES ITS THICKNESS, ONE OF THE ELONGATED EDGES OF THE BLADE BEING A WORKING EDGE ADAPTED TO ENGAGE A COATING MATERIAL TO SMOOTH IT OVER A SURFACE, THE OPPOSITE EDGE PORTION OF THE BLADE BEING ADAPTED TO BE HELD IN A DOCTOR BLADE HOLDER, THUS PROVIDING A GENERALLY FREE WORKING PORTION OF THE BLADE WHICH EXTENDS BEYOND
References Cited (Backward Citations)
AT197512B
Cited
GB1015565A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-04 | 1971-06-05 | 1971-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-04 | 1975-06-05 | 1975-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-04 | 1979-06-05 | 1979-12-05 | $7700.00 | Window Closed / Lapsed |