US984216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Framing for concrete and cement constructions.
Assignee: Individual
•
Filing: 1908-04-30
•
Granted: 1911-02-14
•
Expires: 1928-04-30
Abstract
No abstract record available.
Inventors
- 👤 Walker Henderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:46
CPC Classifications
E; E21; E21D; E21D11/00; E21D11/04; E21D11/10; E21D11/102
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) | 1914-02-13 | 1914-08-15 | 1915-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1918-02-13 | 1918-08-15 | 1919-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1922-02-13 | 1922-08-15 | 1923-02-14 | $7700.00 | Window Closed / Lapsed |