Patent US3058759A successfully refreshed from Google Patents.
US3058759A
Expired / Lapsed
US
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Firewall conduit support
Assignee: Johns Manville Corp
•
Filing: 1960-01-08
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Granted: 1962-10-16
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Expires: 1980-01-08
Abstract
No abstract record available.
Inventors
- 👤 Leon E Mcduff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:13
CPC Classifications
F; F16; F16L; F16L5/00; F16L5/02; F16L5/06; Y; Y10; Y10S; Y10S277/00; Y10S277/916; Y10S277/935
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1164152A
Cited
US1363378A
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US1763574A
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US1820152A
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DE598046C
Cited
US2185450A
Cited
US2620208A
Cited
US2698007A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-15 | 1966-04-16 | 1966-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-15 | 1970-04-16 | 1970-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-15 | 1974-04-16 | 1974-10-16 | $7700.00 | Window Closed / Lapsed |