US1454939A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making articles of varicolored plastic materials
Assignee: RAWSON ELECTRICAL INSTR COMPAN
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Filing: 1920-01-07
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Granted: 1923-05-15
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Expires: 1940-01-07
Abstract
No abstract record available.
Inventors
- 👤 Harold N Michaelsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:51
CPC Classifications
B; B29; B29C; B29C43/00; B29C43/02; B29C43/20; B29K; B29K2061/00; B29K2061/04; B29K2101/00; B29K2101/10; B29K2995/00; B29K2995/0018; B29K2995/002; B29K2995/0021
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) | 1926-05-14 | 1926-11-13 | 1927-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-05-14 | 1930-11-13 | 1931-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-05-14 | 1934-11-13 | 1935-05-15 | $7700.00 | Window Closed / Lapsed |