Patent US1836503A successfully refreshed from Google Patents.
Patent US806838A successfully refreshed from Google Patents.
US806838A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and means for forming concrete piles.
Assignee: RAYMOND CONCRETE PILE Co
•
Filing: 1903-11-30
•
Granted: 1905-12-12
•
Expires: 1923-11-30
Abstract
No abstract record available.
Inventors
- 👤 Alfred A Raymond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:03
CPC Classifications
E; E02; E02D; E02D5/00; E02D5/22; E02D5/34; E02D5/38; E02D5/385
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) | 1908-12-11 | 1909-06-12 | 1909-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1912-12-11 | 1913-06-12 | 1913-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1916-12-11 | 1917-06-12 | 1917-12-12 | $7700.00 | Window Closed / Lapsed |