Patent US1425967A successfully refreshed from Google Patents.
Patent US1515467A successfully refreshed from Google Patents.
US1515467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pillow telephone
Assignee: Individual
•
Filing: 1923-06-05
•
Granted: 1924-11-11
•
Expires: 1943-06-05
Abstract
No abstract record available.
Inventors
- 👤 Draving Charles Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:11
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/02; H04R1/021; Y; Y10; Y10S; Y10S5/00; Y10S5/904
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) | 1927-11-11 | 1928-05-12 | 1928-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-11-11 | 1932-05-12 | 1932-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-11-11 | 1936-05-12 | 1936-11-11 | $7700.00 | Window Closed / Lapsed |