Novel sealants and adhesives
Abstract
Abstract NOVEL STRUCTURES SUITABLE FOR THE FORMATION OF WATERPROOF AND/OR ADHESIVE LAYERS ON SURFACES, PARTICULARLY OF CONCRETE, THE STRUCTURES COMPRISING A SHEET-LIKE SUBSTRATE AND CONTIGUOUS THERETO A MEMBRANE OF A WATERPROOFING PRESSURE-SENSITIVE ADHESIVE. THE SUBSTRATE MAY BE A SHEET-LIKE SUPPORT HAVING THE MEMBRANE ADHERENT THERETO OR BE IN THE FORM OF A PROTECTIVE COATING WHICH CAN BE PHYSICALLY REMOVED FROM THE MEMBRANE WITHOUT SUBSTANTIAL DAMAGE THERETO. IF DESIRED, THE STRUCTURES MAY BE IN THE FORM OF A ROLL COMPRISING ALTERNATE LAYERS OF THE MEMBRANE AND SHEET-LIKE SUBSTRATE, ONE FACE THEREOF BEING SUBSTANTIALLY MORE READILY PHYSICALLY SEPARABLE FROM THE MEMBRANE THAN THE OTHER FACE.
Inventors
- 👤 J Hurst
Bibliographic Details
Claims Analysis
Total Claims: 0References 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) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |