US2221431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Structural material
Assignee: PARA BOND CORP OF AMERICA
•
Filing: 1936-01-17
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Granted: 1940-11-12
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Expires: 1956-01-17
Abstract
No abstract record available.
Inventors
- 👤 Omansky Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:15
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B41/45; C04B41/46; C04B41/48; C04B41/4857; C04B41/60; C04B41/61; C04B41/62; C04B41/63; E; E01; E01C; E01C11/00; E01C11/02; E01C11/04; E01C11/10; E01C11/103; C04B2111/00; C04B2111/00474; C04B2111/00637; C04B2111/0075; Y; Y10; Y10S; Y10S52/00; Y10S52/07; Y10S524/00; Y10S524/925
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) | 1943-11-12 | 1944-05-13 | 1944-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-11-12 | 1948-05-13 | 1948-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-11-12 | 1952-05-13 | 1952-11-12 | $7700.00 | Window Closed / Lapsed |