US2860504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crypt fasteners for keying together crypt front slabs
Assignee: Individual
•
Filing: 1957-04-09
•
Granted: 1958-11-18
•
Expires: 1977-04-09
Abstract
No abstract record available.
Inventors
- 👤 John B Sinner
- 👤 Oscar A Sinner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:34
CPC Classifications
E; E04; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/0801; E04F13/0832; E04F13/0833; E04F13/0846; E04H; E04H13/00; E04H13/006; Y; Y10; Y10T; Y10T292/00; Y10T292/175; Y10T292/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-17 | 1962-05-19 | 1962-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-17 | 1966-05-19 | 1966-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-17 | 1970-05-19 | 1970-11-18 | $7700.00 | Window Closed / Lapsed |