US3354800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing paper pipe
Assignee: Individual
•
Filing: 1965-07-07
•
Granted: 1967-11-28
•
Expires: 1985-07-07
Abstract
No abstract record available.
Inventors
- 👤 Sato Isao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:10
CPC Classifications
B; B31; B31C; B31C3/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A METHOD OF MANUFACTURING A PAPER PIPE, COMPRISING THE STEPS OF SPIRALLY WINDING MATERIAL PAPERS ABOUT A MANDREL BY MEANS OF A TURNING FORCE PROVIDED BY ENDLESS BELTS TO SAID MATERIAL PAPERS TO REVOLVE IN ONE DIRECTION, AND TO FORM A CYLINDER, CUTTING A PREDETERMINED LENGTH OF SAID CYLINDER, WITHOUT REMOVING THE LATTER FROM SAID MANDREL, AND SPIRALLY WINDING MATERIAL PAPERS ABOUT SAID CYLINDER BY MEANS OF A TURNING FORCE IN A DIRECTION OPPOSITE TO THE PREVIOUS ROTATION, SO AS TO CAUSE SAID MATERIAL PAPERS TO CROSS EACH OTHER.
Claim 2
Independent Claim
89 words
A METHOD OF MANUFACTURING A PAPER PIPE, COMPRISING THE STEPS OF SPIRALLY WINDING MATERIAL PAPERS ABOUT A MANDREL BY MEANS OF A TURNING FORCE PROVIDED BY ENDLESS BELTS TO SAID MATERIAL PAPERS TO REVOLVE IN ONE DIRECTION, AND TO FORM A CYLINDER, CUTTING A PREDETERMINED LENGTH OF SAID CYLINDER, WITHOUT REMOVING THE LATTER FROM SAID MANDREL, AND SPIRALLY WINDING MATERIAL PAPERS ABOUT SAID CYLINDER BY MEANS OF A TURNING FORCE IN A DIRECTION OPPOSITE TO THE PREVIOUS ROTATION, SO AS TO CAUSE SAID MATERIAL PAPERS TO CROSS EACH OTHER.
References Cited (Backward Citations)
US931134A
Cited
US1039341A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-27 | 1971-05-29 | 1971-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-27 | 1975-05-29 | 1975-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-27 | 1979-05-29 | 1979-11-28 | $7700.00 | Window Closed / Lapsed |