US3321185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cable drum system with inter-layer shells
Assignee: LETCO ENGINEERING AND TOOL COM
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Filing: 1965-10-19
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Granted: 1967-05-23
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Expires: 1985-10-19
Abstract
No abstract record available.
Inventors
- 👤 Howard W Zenke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:48
CPC Classifications
B; B66; B66D; B66D1/00; B66D1/28; B66D1/30; B66D1/36; B66D1/365; B66D1/38; Y; Y10; Y10S; Y10S242/00; Y10S242/903
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A CABLE DRUM SYSTEM COMPRISING: A ROTATABLE CABLE TAKE-UP DRUM HAVING A CORE FOR THE RECEPTION OF ONE LAYER OF A CABLE WHICH IS TO BE WOUND ON SAID DRUM IN RESPONSE TO ROTATION THEREOF; AND A SHELL REMOVABLY SECURED TO SAID CORE, SAID SHELL RECEIVING SAID CABLE WHEN SAID CORE SUBSTANTIALLY FILLED WITH SAID ONE LAYER OF SAID CABLE, SAID SHELL REMAINING STATIONARY RELATIVE TO SAID CORE WHEN IT IS SECURED THERETO.
Claim 2
Dependent Claim
73 words
A CABLE DRUM SYSTEM COMPRISING: A ROTATABLE CABLE TAKE-UP DRUM HAVING A CORE FOR THE RECEPTION OF ONE LAYER OF A CABLE WHICH IS TO BE WOUND ON SAID DRUM IN RESPONSE TO ROTATION THEREOF; AND A SHELL REMOVABLY SECURED TO SAID CORE, SAID SHELL RECEIVING SAID CABLE WHEN SAID CORE SUBSTANTIALLY FILLED WITH SAID ONE LAYER OF SAID CABLE, SAID SHELL REMAINING STATIONARY RELATIVE TO SAID CORE WHEN IT IS SECURED THERETO.
References Cited (Backward Citations)
US1527478A
Cited
US2802638A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-22 | 1970-11-21 | 1971-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-22 | 1974-11-21 | 1975-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-22 | 1978-11-21 | 1979-05-23 | $7700.00 | Window Closed / Lapsed |