Patent US1883401A successfully refreshed from Google Patents.
US1883401A
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US
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Pipe wrapping apparatus
Assignee: Johns Manville Corp
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Filing: 1930-02-08
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Granted: 1932-10-18
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Expires: 1950-02-08
Abstract
No abstract record available.
Inventors
- 👤 Eugene L Rolfs
- 👤 Charles W Fuller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:29
CPC Classifications
F; F16; F16L; F16L58/00; F16L58/02; F16L58/16; B; B65; B65H; B65H81/00; B65H81/06; B65H81/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1935-10-18 | 1936-04-18 | 1936-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-10-18 | 1940-04-18 | 1940-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-10-18 | 1944-04-18 | 1944-10-18 | $7700.00 | Window Closed / Lapsed |