US2828798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of applying a protective wrapping to a pipe
Assignee: Individual
•
Filing: 1955-03-09
•
Granted: 1958-04-01
•
Expires: 1975-03-09
Abstract
No abstract record available.
Inventors
- 👤 John R Hopkins
- 👤 Frank E Mcnulty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:02
CPC Classifications
F; F16; F16L; F16L58/00; F16L58/02; F16L58/16; Y; Y10; Y10S; Y10S138/00; Y10S138/02; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31641; Y10T442/00; Y10T442/20; Y10T442/2041; Y10T442/2049; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20732; Y10T74/20834; Y10T74/2087
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1356234A
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US1543283A
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US1973193A
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US1811984A
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US1948007A
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US1908601A
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US2158772A
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US2360109A
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US2472100A
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US2523759A
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US2701777A
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US2713551A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-31 | 1961-09-30 | 1962-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-31 | 1965-09-30 | 1966-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-31 | 1969-09-30 | 1970-04-01 | $7700.00 | Window Closed / Lapsed |