Patent US3331729A successfully refreshed from Google Patents.
US3331729A
Expired / Lapsed
US
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Adhesive bonding method and product
Assignee: 3M Co
•
Filing: 1963-02-14
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Granted: 1967-07-18
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Expires: 1983-02-14
Abstract
No abstract record available.
Inventors
- 👤 Alton J Danielson
- 👤 Harold A Berg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:41
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/58; B32; B32B; B32B27/00; B32B37/00; B32B37/12; B32B37/1207; C; C09; C09J; C09J133/00; C09J133/04; C09J133/06; C09J7/00; C09J7/20; C09J7/21; C09J7/30; C09J7/38; C08; C08L; C08L2666/00; C08L2666/54; C09J2203/00; C09J2203/31; C09J2400/00; C09J2400/20; C09J2400/28; C09J2400/283; Y; Y10; Y10S; Y10S264/00; Y10S264/06; Y10T; Y10T156/00; Y10T156/10; Y10T156/1089; Y10T156/109; Y10T428/00; Y10T428/14; Y10T428/1414; Y10T428/24; Y10T428/24355; Y10T428/24364; Y10T428/25; Y10T428/252; Y10T428/254; Y10T428/259
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
THE METHOD OF PROVIDING FOR NON-ADHERENT CONTACT BETWEEN AN ADHESIVE-RECEPTIVE SUBSTRATE SURFACE AND A COVERING HAVING A PRESSURE-SENSITIVE ADHESIVE SURFACE LAYER, COMPRISING RANDOMLY UNIFORMLY SPARSELY DISTRIBUTING OVER A PARTIALLY EMBEDDING IN SAID ADHESIVE SURFACE LAYER A QUANTITY OF THIN-WALLED FRAGILE MICROBALLOONS WHICH ARE COLLAPSIBLE UNDER HAND PRESSURE.
Claim 2
Independent Claim
47 words
THE METHOD OF PROVIDING FOR NON-ADHERENT CONTACT BETWEEN AN ADHESIVE-RECEPTIVE SUBSTRATE SURFACE AND A COVERING HAVING A PRESSURE-SENSITIVE ADHESIVE SURFACE LAYER, COMPRISING RANDOMLY UNIFORMLY SPARSELY DISTRIBUTING OVER A PARTIALLY EMBEDDING IN SAID ADHESIVE SURFACE LAYER A QUANTITY OF THIN-WALLED FRAGILE MICROBALLOONS WHICH ARE COLLAPSIBLE UNDER HAND PRESSURE.
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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) | 1970-07-17 | 1971-01-16 | 1971-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-17 | 1975-01-16 | 1975-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-17 | 1979-01-16 | 1979-07-18 | $7700.00 | Window Closed / Lapsed |