US2459688A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulating tubular covering and method of making the same
Assignee: Johns Manville Corp
•
Filing: 1946-06-01
•
Granted: 1949-01-18
•
Expires: 1966-06-01
Abstract
No abstract record available.
Inventors
- 👤 Vyver Cornelius A De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:07
CPC Classifications
F; F16; F16L; F16L59/00; F16L59/02; F16L59/021; F16L59/024; D; D04; D04B; D04B1/00; D04B1/22; D04B1/225; D04B9/00; D04B9/42; D04B9/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1854119A
Cited
US1972755A
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US2035320A
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US2107467A
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US2111639A
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US2308825A
Cited
US2291568A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-01-18 | 1952-07-19 | 1953-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-18 | 1956-07-19 | 1957-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-18 | 1960-07-19 | 1961-01-18 | $7700.00 | Window Closed / Lapsed |