Patent US878341A successfully refreshed from Google Patents.
US878341A
Expired / Lapsed
US
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Fireproof shutter.
Assignee: Individual
•
Filing: 1907-03-30
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Granted: 1908-02-04
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Expires: 1927-03-30
Abstract
No abstract record available.
Inventors
- 👤 John Cahill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:02
CPC Classifications
E; E06; E06B; E06B5/00; E06B5/10; E06B5/16; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24521; Y10T428/24545; Y10T428/249921; Y10T428/249923
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) | 1911-02-03 | 1911-08-05 | 1912-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1915-02-03 | 1915-08-05 | 1916-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1919-02-03 | 1919-08-05 | 1920-02-04 | $7700.00 | Window Closed / Lapsed |