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US1229709A
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Lock mechanism for sliding doors.
Assignee: James L Howard & Co
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Filing: 1912-02-01
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Granted: 1917-06-12
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Expires: 1932-02-01
Abstract
No abstract record available.
Inventors
- 👤 Frank M Brinckerhoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:01
CPC Classifications
E; E05; E05C; E05C3/00; E05C3/12; E05C3/16; E05C3/22; E05C3/30; E05C3/34; Y; Y10; Y10S; Y10S292/00; Y10S292/46; Y10T; Y10T292/00; Y10T292/08; Y10T292/0801; Y10T292/0825; Y10T292/0826; Y10T292/0829; Y10T292/68; Y10T292/696; Y10T292/702; Y10T292/705
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) | 1920-06-11 | 1920-12-11 | 1921-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-06-11 | 1924-12-11 | 1925-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-06-11 | 1928-12-11 | 1929-06-12 | $7700.00 | Window Closed / Lapsed |