Patent US1753386A successfully refreshed from Google Patents.
US1753386A
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US
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Pipe sleeve
Assignee: ALTMAR STEEL PRODUCTS Co
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Filing: 1927-09-06
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Granted: 1930-04-08
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Expires: 1947-09-06
Abstract
No abstract record available.
Inventors
- 👤 Paltrowitz Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:24
CPC Classifications
E; E02; E02D; E02D5/00; E02D5/22; E02D5/52; E02D5/523; F; F16; F16L; F16L21/00; F16L21/02; F16L21/022; Y; Y10; Y10T; Y10T403/00; Y10T403/55; Y10T403/559
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) | 1933-04-07 | 1933-10-07 | 1934-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-04-07 | 1937-10-07 | 1938-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-04-07 | 1941-10-07 | 1942-04-08 | $7700.00 | Window Closed / Lapsed |