US2654549A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fiber glass spool
Assignee: Hubbard Spool Co
•
Filing: 1949-10-27
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Granted: 1953-10-06
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Expires: 1969-10-27
Abstract
No abstract record available.
Inventors
- 👤 Frederick A Rappleyea
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:08
CPC Classifications
B; B65; B65H; B65H75/00; B65H75/02; B65H75/04; B65H75/08; B65H75/14; B65H2701/00; B65H2701/50; B65H2701/51; B65H2701/515; B65H2701/5152; B65H2701/51528
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
A SPOOL CONSTRUCTION COMPRISING AN INTERAL BODY DEFINING A SMOOTH-SURFACED HUB AND A PAIR OF CONTINUOUS SMOOTH-SURFACED HEAD PORTIONS, AN END PLUG SECURED AT EACH END OF SAID BODY, SAID END PLUGS AND SAID BODY EACH CONSISTING OF 55-70% OF A THERMOSET POLYESTER RESIN MATRIX
Claim 2
Dependent Claim
45 words
A SPOOL CONSTRUCTION COMPRISING AN INTERAL BODY DEFINING A SMOOTH-SURFACED HUB AND A PAIR OF CONTINUOUS SMOOTH-SURFACED HEAD PORTIONS, AN END PLUG SECURED AT EACH END OF SAID BODY, SAID END PLUGS AND SAID BODY EACH CONSISTING OF 55-70% OF A THERMOSET POLYESTER RESIN MATRIX
References Cited (Backward Citations)
US1589177A
Cited
FR671920A
Cited
US1934167A
Cited
US1981771A
Cited
GB434062A
Cited
US2414125A
Cited
US2467999A
Cited
US2486235A
Cited
US2525469A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-05 | 1957-04-06 | 1957-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-05 | 1961-04-06 | 1961-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-05 | 1965-04-06 | 1965-10-06 | $7700.00 | Window Closed / Lapsed |