US2307973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dyeings
Assignee: GAF Chemicals Corp
•
Filing: 1938-05-12
•
Granted: 1943-01-12
•
Expires: 1958-05-12
Abstract
No abstract record available.
Inventors
- 👤 Tischbein Wilhelm
- 👤 Bayer Otto
- 👤 Nelles Johannes
- 👤 Ruf Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:37
CPC Classifications
D; D06; D06P; D06P5/00; D06P5/22; D06P5/225; D06P1/00; D06P1/44; D06P1/64; D06P1/651; D06P1/65106; D06P1/65118; D06P1/653; D06P1/6536; D06P3/00; D06P3/58; D06P3/60; D06P3/6008; D06P3/6016
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) | 1946-01-11 | 1946-07-13 | 1947-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-01-11 | 1950-07-13 | 1951-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-01-11 | 1954-07-13 | 1955-01-12 | $7700.00 | Window Closed / Lapsed |