US3086558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective sleeve
Assignee: PLATT CORP
•
Filing: 1960-03-07
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Granted: 1963-04-23
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Expires: 1980-03-07
Abstract
No abstract record available.
Inventors
- 👤 John C Macgill
- 👤 Koehler Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:00
CPC Classifications
B; B65; B65D; B65D59/00; B65D59/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A PROTECTIVE SLEEVE COMPRISING HELICALLY DISPOSED STRIPS OF SHEET MATERIAL DEFINING A PLURALITY, FEWER THAN FOUR, OF CONCENTRIC SINGLE PLY TUBES SECURED TOGETHER, ADJACENT TUBES DIFFERING IN SHEAR STRENGTH AND HAVING GAPS BETWEEN CONVOLUTIONS OF THEIR STRIPS RESPECTIVELY OUT OF REGISTRY WHEREBY SAID TUBE OF LOWER SHEAR STRENGTH IS READILY FRANGIBLE BETWEEN THE GAPS OF EACH TUBE ADJACENT THERETO.
Claim 2
Dependent Claim
59 words
A PROTECTIVE SLEEVE COMPRISING HELICALLY DISPOSED STRIPS OF SHEET MATERIAL DEFINING A PLURALITY, FEWER THAN FOUR, OF CONCENTRIC SINGLE PLY TUBES SECURED TOGETHER, ADJACENT TUBES DIFFERING IN SHEAR STRENGTH AND HAVING GAPS BETWEEN CONVOLUTIONS OF THEIR STRIPS RESPECTIVELY OUT OF REGISTRY WHEREBY SAID TUBE OF LOWER SHEAR STRENGTH IS READILY FRANGIBLE BETWEEN THE GAPS OF EACH TUBE ADJACENT THERETO.
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) | 1966-04-22 | 1966-10-22 | 1967-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-22 | 1970-10-22 | 1971-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-22 | 1974-10-22 | 1975-04-23 | $7700.00 | Window Closed / Lapsed |