Patent US3014827A successfully refreshed from Google Patents.
US3014827A
Expired / Lapsed
US
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Spring closure for cylindrical pipe insulation
Assignee: Johns Manville Corp
•
Filing: 1958-07-09
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Granted: 1961-12-26
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Expires: 1978-07-09
Abstract
No abstract record available.
Inventors
- 👤 Raymond C Clinchy
- 👤 John F Stone
- 👤 Charles F Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:03
CPC Classifications
F; F16; F16L; F16L59/00; F16L59/02; F16L59/021; F16L59/024; Y; Y10; Y10T; Y10T24/00; Y10T24/14; Y10T24/1457; Y10T24/1459; Y10T24/1476
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US234417A
Cited
US273689A
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US1762276A
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US785822A
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US2160009A
Cited
DE810901C
Cited
US2650180A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-25 | 1965-06-26 | 1965-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-25 | 1969-06-26 | 1969-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-25 | 1973-06-26 | 1973-12-26 | $7700.00 | Window Closed / Lapsed |