US1097644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Calling device.
Assignee: Kellogg Switchboard and Supply Co
•
Filing: 1911-04-26
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Granted: 1914-05-26
•
Expires: 1931-04-26
Abstract
No abstract record available.
Inventors
- 👤 William Kaisling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:01
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/26; H04M1/27; H04M1/274
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) | 1917-05-25 | 1917-11-24 | 1918-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1921-05-25 | 1921-11-24 | 1922-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1925-05-25 | 1925-11-24 | 1926-05-26 | $7700.00 | Window Closed / Lapsed |