Patent US2820722A successfully refreshed from Google Patents.
Patent US198703A successfully refreshed from Google Patents.
US198703A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in devices for hanging pictures
Assignee: —
•
Filing: —
•
Granted: 1877-12-25
•
Expires: 1894-12-25
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:59
CPC Classifications
A; A47; A47G; A47G1/00; A47G1/16; A47G1/17; Y; Y10; Y10S; Y10S24/00; Y10S24/11
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) | 1880-12-24 | 1881-06-25 | 1881-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1884-12-24 | 1885-06-25 | 1885-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1888-12-24 | 1889-06-25 | 1889-12-25 | $7700.00 | Window Closed / Lapsed |