US3334841A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic spool of complementary halves
Assignee: Individual
•
Filing: 1966-07-07
•
Granted: 1967-08-08
•
Expires: 1986-07-07
Abstract
No abstract record available.
Inventors
- 👤 Waldemar W Burhop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:52
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/037; B; B65; B65H; B65H75/00; B65H75/02; B65H75/04; B65H75/08; B65H75/14; B65H2701/00; B65H2701/50; B65H2701/51; B65H2701/513; B65H2701/5136; B65H2701/53; B65H2701/534; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49893; Y10T29/49945
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
132 words
A MOLDED HALF PORTION FOR FORMING A SPOOL WITH TWO SUCH HALF PORTIONS, SAID HALF PORTION COMPRISING: A CYLINDRICAL PORTION HAVING AN ABUTTING SURFACE AT ONE END THEREOF OF SAID HALF PORTION; A PREDETERMINED NUMBER OF TONGUES POSITIONED CIRCUMFERENTIALLY AROUND SAID ABUTTING SURFACE AND AT LEAST PARTIALLY RADIALLY INWARD OF SAID CYLINDRICAL PORTION; SAID TONGUES EXTENDING LONGITUDINALLY IN BOTH DIRECTIONS FROM SAID ABUTTING SURFACE ALONG SAID CYLINDRICAL PORTION, EACH OF SAID TONGUES BEING SUBSTANTIALLY SIMILAR AND HAVING A CIRCUMFERENTIAL SPACE THEREBETWEEN; AND EACH OF SAID SPACES BEING SUBSTANTIALLY SIMILAR TO EACH OTHER AND TO SAID TONGUES, AND BEING COMPLEMENTARY TO SAID TONGUES SO THAT THE TONGUES OF THE OTHER HALF PORTION CAN FIT IN RESPECTIVE ONES OF SAID SPACES AND AT LEAST PARTIALLY OVERLAP SAID HALF PORTION INWARDLY OF SAID CYLINDRICAL PORTION.
References Cited (Backward Citations)
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Cited
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Cited
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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) | 1970-08-07 | 1971-02-06 | 1971-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-07 | 1975-02-06 | 1975-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-07 | 1979-02-06 | 1979-08-08 | $7700.00 | Window Closed / Lapsed |