US1856415A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of treating insulating sleeve
Assignee: Individual
•
Filing: 1928-02-25
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Granted: 1932-05-03
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Expires: 1948-02-25
Abstract
No abstract record available.
Inventors
- 👤 Halperin Herman
- 👤 Alexander P Thoms
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:22
CPC Classifications
F; F16; F16L; F16L21/00; F16L21/002; F16L21/005; B; B29; B29C; B29C37/00; B29C37/0078; B29C37/0082; B29C65/00; B29C65/66; B29C65/68; B29C66/00; B29C66/001; B29C66/01; B29C66/05; B29C66/10; B29C66/12; B29C66/122; B29C66/1222; B29C66/1224; B29C66/124; B29C66/1244; B29C66/12441; B29C66/50; B29C66/51; B29C66/52; B29C66/522; B29C66/5221; B29C66/5229; B29C66/52291; B29C66/52292; B29C66/52297; B29C66/70; B29C66/73; B29C66/731; B29C66/7311; B29C66/73111; B29C66/74; B29C66/742; B29C71/00; B29C71/02; B29C35/00; B29C35/02; B29C35/04; B29C35/041; B29C2035/042; B29C2035/043; B29C66/71; B29K; B29K2061/00; B29K2061/04; B29K2705/00; B29K2995/00; B29K2995/0037; B29K2995/0094; B29K2995/0096; B29L; B29L2023/00; Y; Y10; Y10S; Y10S285/00; Y10S285/905
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) | 1935-05-03 | 1935-11-02 | 1936-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-05-03 | 1939-11-02 | 1940-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-05-03 | 1943-11-02 | 1944-05-03 | $7700.00 | Window Closed / Lapsed |