US2327706A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of curving material
Assignee: Johns Manville Corp
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Filing: 1941-05-09
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Granted: 1943-08-24
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Expires: 1961-05-09
Abstract
No abstract record available.
Inventors
- 👤 Ralph T Halstead
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:22
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/02; B29C53/04; B29C53/043; B26; B26D; B26D1/00; B26D1/01; B26D1/12; B26D1/14; B26D1/24; B26D1/245; B29K; B29K2101/00; B29K2101/10; B29K2105/00; B29K2105/06; B29K2313/00; B29L; B29L2031/00; B29L2031/16
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) | 1946-08-23 | 1947-02-22 | 1947-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-08-23 | 1951-02-22 | 1951-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-08-23 | 1955-02-22 | 1955-08-24 | $7700.00 | Window Closed / Lapsed |