US3163575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Doctor blade for differentially creping sheets from a drum
Assignee: Kimberly Clark Corp
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Filing: 1962-02-26
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Granted: 1964-12-29
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Expires: 1982-02-26
Abstract
No abstract record available.
Inventors
- 👤 Bernard D Nobbe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:03
CPC Classifications
B; B31; B31F; B31F1/00; B31F1/12; B31F1/14; B31F1/145; D; D21; D21G; D21G3/00; D21G3/005
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
92 words
A DOCTOR BLADE FOR CREPING FLEXIBLE WEB FROM THE SURFACE OF A DRIER DRUM AND COMPRISING A SHEET MATERIAL STRIP HAVING A STRAIGHT CONTINUOUS LONGITUDINAL EDGE ON ONE SIDE OF THE STRIP ADAPTED TO CONTACT THE SURFACE OF THE DRIER DRUM, SAID STRIP BEING PROVIDED WITH A PLURALITY OF SPACED NOTCHES INDENTED INTO THE STRIP FROM THE OTHER SIDE THEREOF AND EXTENDING ONLY PARTIALLY THROUGH THE STRIP TO HAVE BASE SURFACES EXTENDING FROM SAID EDGE TOWARD THE MIDDLE OF THE STRIP, SAID BASE SURFACES BEING FLAT IN SECTION LONGITUDINALLY OF THE STRIP.
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) | 1967-12-29 | 1968-06-29 | 1968-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-29 | 1972-06-29 | 1972-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-29 | 1976-06-29 | 1976-12-29 | $7700.00 | Window Closed / Lapsed |