US2362489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Granular material and method of making the same
Assignee: 3M Co
•
Filing: 1938-09-27
•
Granted: 1944-11-14
•
Expires: 1958-09-27
Abstract
No abstract record available.
Inventors
- 👤 Clifford L Jewett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:35
CPC Classifications
E; E04; E04D; E04D7/00; E04D7/005; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24372; Y10T428/2438; Y10T428/24388; Y10T428/249921; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2993; Y10T428/2995
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) | 1947-11-14 | 1948-05-15 | 1948-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-11-14 | 1952-05-15 | 1952-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-11-14 | 1956-05-15 | 1956-11-14 | $7700.00 | Window Closed / Lapsed |