Patent DE394775C successfully refreshed from Google Patents.
Patent US3298721A successfully refreshed from Google Patents.
US3298721A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coupling band for joining corrugated pipes
Assignee: Armco Inc
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Filing: 1964-01-14
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Granted: 1967-01-17
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Expires: 1984-01-14
Abstract
No abstract record available.
Inventors
- 👤 Wiley Allen Dale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:12
CPC Classifications
F; F16; F16L; F16L25/00; F16L25/0036; F16L25/0063
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
MEANS FOR JOINING SECTIONS OF CORRUGATED PIPE IN SUBSTANTIALLY ABUTTING END TO END RELATIONSHIP, SAID MEANS COMPRISING AN OPEN BAND MEMBER FORMED OF AT LEAST ONE PIECE OF METAL CORRUGATED GENERALLY IN THE DIRECTION OF ITS LENGTH AND CURVED LONGITUDINALLY TO FIT OVER THE ENDS OF ABUTTING SECTIONS OF CORRUGATED PIPE, THE LENGTH OF SAID MEMBER BEING SUFFICIENT TO FORM A CONSTRICTING BAND WHEN POSITIONED ABOUT THE ENDS OF SAID PIPE, END PORTIONS OF THE OUTER SURFACE OF SAID BAND HAVING COOPERATING SETS OF INTEGRAL LUGS STRUCK UPWARDLY FROM VALLEYS OF SAID CORRUGATIONS THEREIN, SAID LUGS BEING ADAPTED FOR THE ENGAGEMENT OF CONTRACTING FASTENING MEMBERS.
Claim 2
Dependent Claim
105 words
MEANS FOR JOINING SECTIONS OF CORRUGATED PIPE IN SUBSTANTIALLY ABUTTING END TO END RELATIONSHIP, SAID MEANS COMPRISING AN OPEN BAND MEMBER FORMED OF AT LEAST ONE PIECE OF METAL CORRUGATED GENERALLY IN THE DIRECTION OF ITS LENGTH AND CURVED LONGITUDINALLY TO FIT OVER THE ENDS OF ABUTTING SECTIONS OF CORRUGATED PIPE, THE LENGTH OF SAID MEMBER BEING SUFFICIENT TO FORM A CONSTRICTING BAND WHEN POSITIONED ABOUT THE ENDS OF SAID PIPE, END PORTIONS OF THE OUTER SURFACE OF SAID BAND HAVING COOPERATING SETS OF INTEGRAL LUGS STRUCK UPWARDLY FROM VALLEYS OF SAID CORRUGATIONS THEREIN, SAID LUGS BEING ADAPTED FOR THE ENGAGEMENT OF CONTRACTING FASTENING MEMBERS.
References 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) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |