US831537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elastic check-loop.
Assignee: BERKSHIRE SPECIALTY Co
•
Filing: 1905-10-09
•
Granted: 1906-09-25
•
Expires: 1925-10-09
Abstract
No abstract record available.
Inventors
- 👤 Chauncey A Cornell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:08
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/02; F16F1/04; F16F1/12; F16F1/128
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1909-09-24 | 1910-03-26 | 1910-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1913-09-24 | 1914-03-26 | 1914-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1917-09-24 | 1918-03-26 | 1918-09-25 | $7700.00 | Window Closed / Lapsed |