US3347362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure sensitive adhesive tapes with anti-static edge coatings
Assignee: 3M Co
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Filing: 1964-09-28
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Granted: 1967-10-17
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Expires: 1984-09-28
Abstract
No abstract record available.
Inventors
- 👤 George R Rabuse
- 👤 Alfred J Wallner
- 👤 Craig A Sterling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:47
CPC Classifications
C; C09; C09J; C09J7/00; C09J7/30; C09J7/20; C09J7/22; Y; Y10; Y10S; Y10S206/00; Y10S206/811; Y10T; Y10T428/00; Y10T428/24; Y10T428/24777; Y10T428/24793; Y10T428/28; Y10T428/2843
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
A NORMALLY TACKY ADHESIVE SHEET WOUND UPON ITSELF IN ROLL FORM, HAVING A TACKY RUBBERY ADHESIVE LAYER WHOSE FACING SURFACE IS IN REMOVABLE ADHERENT CONTACT WITH THE CONTIGUOUS OPPOSITE FACING SURFACE OF THE SHEET, THESE SURFACES BEING CHEMICALLY DIFFERENT AND FORCE BEING REQUIRED TO UNWIND THE SHEET AND EFFECT A SEPARATION OF THE SURFACES; EACH LAYER OF THE ADHESIVE SHEET BEING ELECTRICALLY INSULATIVE BETWEEN THE SIDE EDGES AND SUCH THAT WITHOUT THE ANTISTATIC MEANS HEREAFTER SPECIFIED THE REMOVAL OF A PIECE OF THE SHEET TENDS TO PRODUCE OBJECTIONABLE STATIC CHARGING THEREOF; CHARACTERIZED BY HAVING IN NOVEL COMBINATION THEREWITH ANTISTATIC EDGE COATING MEANS CONSISTING OF A THIN FLEXIBLE PERMANENT CONDUCTIVE COATING COVERING AND FIRMLY BONDED TO AT LEAST ONE OF THE SIDE EDGES OF THE SHEET AND WHICH IS CAPABLE OF BEING RETAINED AS THE ADHESIVE SHEET IS UNWOUND FROM THE ROLL AND OF SUBSTANTIALLY REDUCING STATIC CHARGING EVEN WHEN THE ADHESIVE SHEET ROLL IS EXPOSED TO AN ATMOSPHERE HAVING A RELATIVE HUMIDITY AS LOW AS ABOUT 25%.
Claim 2
Dependent Claim
167 words
A NORMALLY TACKY ADHESIVE SHEET WOUND UPON ITSELF IN ROLL FORM, HAVING A TACKY RUBBERY ADHESIVE LAYER WHOSE FACING SURFACE IS IN REMOVABLE ADHERENT CONTACT WITH THE CONTIGUOUS OPPOSITE FACING SURFACE OF THE SHEET, THESE SURFACES BEING CHEMICALLY DIFFERENT AND FORCE BEING REQUIRED TO UNWIND THE SHEET AND EFFECT A SEPARATION OF THE SURFACES; EACH LAYER OF THE ADHESIVE SHEET BEING ELECTRICALLY INSULATIVE BETWEEN THE SIDE EDGES AND SUCH THAT WITHOUT THE ANTISTATIC MEANS HEREAFTER SPECIFIED THE REMOVAL OF A PIECE OF THE SHEET TENDS TO PRODUCE OBJECTIONABLE STATIC CHARGING THEREOF; CHARACTERIZED BY HAVING IN NOVEL COMBINATION THEREWITH ANTISTATIC EDGE COATING MEANS CONSISTING OF A THIN FLEXIBLE PERMANENT CONDUCTIVE COATING COVERING AND FIRMLY BONDED TO AT LEAST ONE OF THE SIDE EDGES OF THE SHEET AND WHICH IS CAPABLE OF BEING RETAINED AS THE ADHESIVE SHEET IS UNWOUND FROM THE ROLL AND OF SUBSTANTIALLY REDUCING STATIC CHARGING EVEN WHEN THE ADHESIVE SHEET ROLL IS EXPOSED TO AN ATMOSPHERE HAVING A RELATIVE HUMIDITY AS LOW AS ABOUT 25%.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-16 | 1971-04-17 | 1971-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-16 | 1975-04-17 | 1975-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-16 | 1979-04-17 | 1979-10-17 | $7700.00 | Window Closed / Lapsed |