Patent US3299908A successfully refreshed from Google Patents.
US3299908A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hollow reinforced seamless tubular articles
Assignee: Individual
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Filing: 1963-12-18
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Granted: 1967-01-24
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Expires: 1983-12-18
Abstract
No abstract record available.
Inventors
- 👤 Petzetakis Aristovoulos George
- 👤 Sts Chandri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:46
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/56; B29C53/568; B29C48/00; B29C48/03; B29C48/09; B29C48/12; B29C48/13; B29C48/15; B29C48/151; B29C48/152; B29C48/153; B29C48/16; B29C48/18; B29C48/25; B29C48/30; B29C48/32; B29C48/33; B29C53/58; B29C53/581; B29C53/582; B29D; B29D23/00; B29D23/001; F; F16; F16L; F16L11/00; F16L11/04; F16L11/08; F16L11/081; F16L11/11; B29C48/001; B29C48/0018; B29C48/19; B29C48/20; B29K; B29K2021/00; B29L; B29L2023/00; B29L2023/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A HOLLOW SEAMLESS TUBE COMPRISING A TUBULAR WALL FORMED OF A FIRST SYNTHETIC RESIN MATERIAL, AND A REINFORCING SPIRAL OF A SECOND SYNTHETIC RESIN MATERIAL EXTENDING THROUGHOUT THE LENGTH OF SAID TUBE, SIMILAR TO, BUT STRONGER THAN, SAID FIRST RESIN MATERIAL, FULLY EMBEDDED WITHIN SAID WALL AND INTIMATELY AND INSEPARATELY BONDED THERETO SO AS TO BE INTEGRAL WITH SAID WALL.
Claim 2
Dependent Claim
60 words
A HOLLOW SEAMLESS TUBE COMPRISING A TUBULAR WALL FORMED OF A FIRST SYNTHETIC RESIN MATERIAL, AND A REINFORCING SPIRAL OF A SECOND SYNTHETIC RESIN MATERIAL EXTENDING THROUGHOUT THE LENGTH OF SAID TUBE, SIMILAR TO, BUT STRONGER THAN, SAID FIRST RESIN MATERIAL, FULLY EMBEDDED WITHIN SAID WALL AND INTIMATELY AND INSEPARATELY BONDED THERETO SO AS TO BE INTEGRAL WITH SAID WALL.
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) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |