US3372852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape
Assignee: 3M Co
•
Filing: 1965-05-26
•
Granted: 1968-03-12
•
Expires: 1985-05-26
Abstract
No abstract record available.
Inventors
- 👤 Cornell Lew Wallace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:19
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/02; B23K35/0255; B23K9/00; B23K9/02; B23K9/035; B23K9/0356
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A UNITARY TAPE MATERIAL USEFUL AS A BACKING MEANS IN METAL WELDING COMPRISING A FLEXIBLE BACKING COATED WITH ADHESIVE, A STRIP OF FLEXIBLE REFRACTORY MATERIAL ADHERED TO A CENTRAL PORTION OF THE COATED SIDE OF SAID BACKING, SAID REFRACTORY MATERIAL COMPRISING INORGANIC PARTICLES WITHIN THE SIZE RANGE OF 50 TO 4,000 MICRONS BOUND TOGETHER WITH A MINOR AMOUNT, LESS THAN 10 PERCENT, OF THE BULK VOLUME OF SAID REFRACTORY MATERIAL OF A
Claim 2
Dependent Claim
72 words
A UNITARY TAPE MATERIAL USEFUL AS A BACKING MEANS IN METAL WELDING COMPRISING A FLEXIBLE BACKING COATED WITH ADHESIVE, A STRIP OF FLEXIBLE REFRACTORY MATERIAL ADHERED TO A CENTRAL PORTION OF THE COATED SIDE OF SAID BACKING, SAID REFRACTORY MATERIAL COMPRISING INORGANIC PARTICLES WITHIN THE SIZE RANGE OF 50 TO 4,000 MICRONS BOUND TOGETHER WITH A MINOR AMOUNT, LESS THAN 10 PERCENT, OF THE BULK VOLUME OF SAID REFRACTORY MATERIAL OF A
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) | 1971-03-12 | 1971-09-11 | 1972-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-12 | 1975-09-11 | 1976-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-12 | 1979-09-11 | 1980-03-12 | $7700.00 | Window Closed / Lapsed |