US2138137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesive
Assignee: Hercules Powder Co
•
Filing: 1935-02-21
•
Granted: 1938-11-29
•
Expires: 1955-02-21
Abstract
No abstract record available.
Inventors
- 👤 Walter D Bowlby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:37
CPC Classifications
C; C09; C09J; C09J101/00; C09J101/08; C09J101/16; C09J101/18; C08; C08K; C08K5/00; C08K5/0008; C08K5/0016; C08L; C08L1/00; C08L1/08; C08L1/16; C08L1/18; C08L93/00; C08L93/04; C09J191/00; C09J193/00; C09J193/04
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) | 1941-11-28 | 1942-05-30 | 1942-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-11-28 | 1946-05-30 | 1946-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-11-28 | 1950-05-30 | 1950-11-29 | $7700.00 | Window Closed / Lapsed |