US3228308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a laminate article
Assignee: Individual
•
Filing: 1963-04-15
•
Granted: 1966-01-11
•
Expires: 1983-04-15
Abstract
No abstract record available.
Inventors
- 👤 Denenberg Maurice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:20
CPC Classifications
B; B31; B31C; B31C3/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A METHOD OF MAKING A SPIRALLY WOUND TUBE COMPRISING THE STEPS OF SPIRALLY WRAPPING FIRST, SECOND AND THIRD LAYERS ON A ROTATING MANDREL, APPLYING AN ADHESIVE TO A SURFACE OF SAID SECOND AND THIRD LAYERS BEFORE THEY ARE WRAPPED ON SAID MANDREL, SAID FIRST LAYER BEING A LAMINATE OF WAX ON NON-POROUS MATERIAL AND BEING THE INNERMOST LAYER, AND HEATING SAID WAX TO A TEMPERATURE BETWEEN 150*F. AND 200F. PRIOR TO CONTACT OF THE WAX WITH THE MANDREL, SAID STEP OF SPIRALLY WRAPPING SAID FIRST LAYER INCLUDING APPLYING SAID WAX TO THE OUTER PERIPHERAL SURFACE OF SAID MANDREL WHILE SAID WAX IS AT SAID TEMPERATURE
Claim 2
Independent Claim
105 words
A METHOD OF MAKING A SPIRALLY WOUND TUBE COMPRISING THE STEPS OF SPIRALLY WRAPPING FIRST, SECOND AND THIRD LAYERS ON A ROTATING MANDREL, APPLYING AN ADHESIVE TO A SURFACE OF SAID SECOND AND THIRD LAYERS BEFORE THEY ARE WRAPPED ON SAID MANDREL, SAID FIRST LAYER BEING A LAMINATE OF WAX ON NON-POROUS MATERIAL AND BEING THE INNERMOST LAYER, AND HEATING SAID WAX TO A TEMPERATURE BETWEEN 150*F. AND 200F. PRIOR TO CONTACT OF THE WAX WITH THE MANDREL, SAID STEP OF SPIRALLY WRAPPING SAID FIRST LAYER INCLUDING APPLYING SAID WAX TO THE OUTER PERIPHERAL SURFACE OF SAID MANDREL WHILE SAID WAX IS AT SAID TEMPERATURE
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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) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |